Abstract: Apparatus and method are provided for facilitating simulation of heated airflow exhaust of an electronics subsystem, electronics rack or row of electronics racks. The apparatus includes a thermal simulator, which includes an air-moving device and a fluid-to-air heat exchanger. The air-moving device establishes airflow from an air inlet to air outlet side of the thermal simulator tailored to correlate to heated airflow exhaust of the electronics subsystem, rack or row of racks being simulated. The fluid-to-air heat exchanger heats airflow through the thermal simulator, with temperature of airflow exhausting from the simulator being tailored to correlate to temperature of the heated airflow exhaust of the electronics subsystem, rack or row of racks being simulated. The apparatus further includes a fluid distribution apparatus, which includes a fluid distribution unit disposed separate from the fluid simulator and providing hot fluid to the fluid-to-air heat exchanger of the thermal simulator.

Abstract: A method of design optimization, the method comprising producing a first computer model of a first geometry, producing a CFD mesh from the first computer model, using the CFD mesh from the first computer to produce a measure of the fluid dynamic performance of the first geometry, producing a new computer model of a new geometry, producing a CFD mesh from the new computer model, using the CFD mesh to produce a measure of the fluid dynamic performance of the new geometry, and “identifying an optimal geometry using the fluid dynamic performance measurements of the first and new geometries previously produced.

Abstract: A method of generating a model of a turbidity current in a fluid is disclosed. A first flow layer in the turbidity current is defined. The method successively defines at least one more flow layer in the turbidity current. Each successive flow layer includes the previously defined flow layer. A set of depth-averaged flow variables for each flow layer is defined. A model is developed that describes the turbidity current. The model uses fluid flow equations and the set of depth-averaged flow variables for each flow layer to predict fluid flow in each flow layer. The model is then output.

Abstract: The present invention enables the use of a global optimization method for performing joint-inversion of multiple petrophysical data sets, using forward models based on first principle of physics, to generate a 3D rock representation of a subsurface rock structure. The resulting 3D rock representation captures the internal structure, and honors the measured petrophysical properties, of the subsurface rock structure. The 3D rock representation can then be used to predict additional properties not considered in the inversion, to further characterize the subsurface rock structure.

Abstract: A substrate processing apparatus includes a substrate processing apparatus, including: a substrate processing chamber configured to accommodate a substrate and process the substrate; a piping coupled to the substrate processing chamber to allow a gas for processing the substrate to be introduced therethrough; and a simulation apparatus configured to simulate a path in which the gas for processing the substrate flows through the piping. The simulation apparatus includes: an information acquisition unit configured to acquire gas flow information defined by an operation mode in which the substrate is processed; a path determination unit configured to determine a gas path based on the gas flow information acquired by the information acquisition unit; and a simulation unit configured to simulate a flow of the gas by putting a color defined according to the type of gas on the gas path determined by the path determination unit.

Abstract: A quantitative calculation method for oil (gas) saturation of fractured reservoir during petroleum exploitation is provided. The method comprises: obtaining the fracture porosity and calculating resistivity index at different depth of fractured reservoir with known full diameter core data and imaging logging data; establishing the percolation network model of matrix and fracture combination with known pore structure feature; calibrating the numerical simulation results obtained from percolation network model based on the data of core experiment and sealed coring analysis results, then obtaining the relationship between the resistivity index (I) and water saturation (Sw) at different fracture porosity; calculating the oil (gas) saturation of fractured reservoir through selecting an interpolation function. The oil (gas) saturation calculated with said method is 0.67, however 0.49 with common method in some fractured reservoir. The accuracy is improved by more than 0.18 in the studied fractured reservoir.

Abstract: A simulation method for evaluating the aerodynamic performance of a golf club head uses arithmetic operations executed by a computer to analyze air flow around the head of a golf club when the club is swung, and thereby estimates the aerodynamic forces which act on the club head. Because the aerodynamic properties of a golf club head are evaluated without relying on experimental evaluations using physical prototypes, this method enables the efficient development of golf clubs.

Abstract: Systems and method for simulating liquid containment behavior. The system comprises a solid modeler and a nonlinear equation solver. The nonlinear equation solver takes as input the solid model representation of the containment vessel from the solid modeler, a desired orientation in space, dynamic conditions (e.g., lateral acceleration) and an amount of liquid. To find the level of liquid in the vessel, the system solver iteratively performs successive Boolean subtractions using an infinite horizontal half-space that represents the liquid level of the vessel. The resulting sliced solid model is used to compute the volume of the liquid at that level. The iterative system solver terminates when the computed volume of the sliced containment vessel matches the specified volume of liquid (e.g., fuel) within a given tolerance.

Abstract: A method for defining a fluid/solid boundary for computational fluid dynamics simulations making use of a coordinate system mesh and a solid object model, which includes the steps of defining straight lines on which all of the grid points of the coordinate system mesh are positioned; obtaining intersecting points of the straight lines with the surface of the solid object model; and a step in which, for each of the straight lines having the intersecting points, the grid points on the straight line are searched for the nearest point to each of the intersecting points, and based on the searched-out nearest points, the positioned grid points are determined as to whether the grid point is positioned inside the solid object model or in the fluid region.

Abstract: The present invention relates to a method of predicting an amount of production from a fractured reservoir and a recorded medium for the method. The method of predicting an amount of production from a fractured reservoir can include: (a) generating a fracture network model, which includes discrete fractures, using fracture characteristic information; (b) generating a flow model for representing flow paths for a fluid between the discrete fractures using a 2-dimensional finite difference method; and (c) predicting the amount of production from the fractured reservoir using the flow model.

Abstract: An analyzing device includes: a particle definition unit configured to define a system including a plurality of particles in a virtual space; a constraint assigning unit configured to assign a constraint to the system defined by the particle definition unit so as to present a flow; and a numerical computation unit configured to numerically compute a governing equation that governs the motion of each particle of the particle system to which the constraint is assigned by the constraint assigning unit. The numerical computation unit identifies particles linked with a disturbance source of the flow. The analyzing device further includes display control unit configured to display identified particles on a display in a mode different from that of the other particles.

Abstract: A mobile station and methods are disclosed for diagnosing and modeling site specific effluent treatment facility requirements to arrive at a treatment regimen and/or proposed commercial plant model idealized for the particular water/site requirements. The station includes a mobile platform having power intake, effluent intake and fluid outflow facilities and first and second suites of selectably actuatable effluent pre-treatment apparatus. An effluent polishing treatment array is housed at the station and includes at least one of nanofiltration, reverse osmosis and ion-exchange stages. A suite of selectively actuatable post-treatment apparatus is housed at the station. Controls are connected at the station for process control, monitoring and data accumulation. A plurality of improved water treatment technologies is also disclosed.

Abstract: A system for automatically optimizing a Field Development Plan (FDP) for an oil or gas field uses a fast analytic reservoir simulator to dynamically model oil or gas production from the entire reservoir over time in an accurate and rapid manner. An objective function defining a Figure of Merit (FoM) for candidate FDPs is maximized, using an optimization algorithm, to determine an optimized FDP in light of physical, engineering, operational, legal and engineering constraints. The objective function for the Figure of Merit, e.g., net present value (NPV) or total production for a given period of time, relies on a production forecast from the fast analytic reservoir simulator for the entire FDP.

Abstract: A method for predicting fluid flow is provided. An exemplary embodiment of the method comprises obtaining data describing a stratigraphy, the stratigraphy comprising a fault, predicting a volume of shale in the fault and calculating a thickness of the fault. The exemplary method may also comprise calculating a permeability of the fault based on the volume of shale, the thickness, an estimated shale smear continuity factor and an estimated cataclastic reduction factor. The exemplary method may additionally comprise predicting fluid flow in a subsurface region based on the fault permeability.

Abstract: Methods of using computer based models for simulating the physical behavior of bodily fluids with absorbent articles.

Abstract: A method for determining flow distribution in a formation having a wellbore formed therein includes the steps of positioning a sensor within the wellbore, wherein the sensor generates a feedback signal representing at least one of a temperature and a pressure measured by the sensor, injecting a fluid into the wellbore and into at least a portion of the formation adjacent the sensor, shutting-in the wellbore for a pre-determined shut-in period, generating a simulated model representing at least one of simulated temperature characteristics and simulated pressure characteristics of the formation during the shut-in period, generating a data model representing at least one of actual temperature characteristics and actual pressure characteristics of the formation during the shut-in period, wherein the data model is derived from the feedback signal, comparing the data model to the simulated model, and adjusting parameters of the simulated model to substantially match the data model.

Abstract: The present disclosure includes the use of grids composed solely or in part of a set of contiguous cells having six or more principal flow directions within a single layer is disclosed for use in numerical simulation. The grids are particularly well-adapted for use in modeling flow in hydrocarbon-bearing reservoirs where fingering or channeling is experienced. Methods of constructing a bisected periodic grid and a substantially constant width radial grid in connection with the present disclosure are also provided. The problem of grid orientation effects is lessened by providing grids with an increased number of principal flow directions, typically six or more. The improved grids may be used in many preexisting simulators.

Abstract: A simulation method utilizing a Cartesian grid comprises: a process in which a model of a two or three-dimensional space is defined as a Cartesian grid composed of cells; a process in which, based on a physical value and condition associated with the Cartesian grid, a Poisson equation is defined; and a process in which, the physical value is calculated by approximately solving the Poisson equation. The calculating process comprises: a step of calculating an error by using a Block-Cyclic Reduction Algorithm; a step of testing whether the calculated error is within a predetermined acceptable range or not; and a step of correcting a variable ? by the use of a correction parameter if the calculated error is outside the predetermined acceptable range. The calculating process repeats the error calculating step, testing step and error correcting step until the error becomes within the predetermined acceptable range.

Abstract: A channel emulator reads a record of captured radio signal data of a group of cellular base stations in a fielded cellular network from a memory. Based on the record of the captured radio signal data, the channel emulator generates a simulation of a radio environment of the fielded cellular network. In one aspect, the simulation generates a number of live cellular base station signals fewer than the group of cellular base stations in the fielded cellular network. In another aspect, a terrain environment model is applied based on the captured radio signal data.

Abstract: A system includes a computing device that includes a memory configured to store instructions. The computing device also includes a processor configured to execute the instructions to perform a method that includes defining a simulated fluid object that includes a first portion and a second portion being represented by a signed distance function. The method also includes applying at least one constraint to the first portion of the simulated fluid object to match a velocity of a target. The method also includes applying a collection of calculated forces to the second portion of the simulated fluid object. Also, the method includes rendering the first portion applied with the at least one constraint and the second portion applied with the collection of calculated forces to present the simulated fluid object.

Abstract: The present invention comprises systems and methods for large eddy simulations using a scaled S-model, which may be scaled in both time and space. Prior large eddy simulation models require at least one special coefficient, which vary from case to case and need to be decided experimentally or empirically. In embodiments, the scaled S-model does not require any coefficient that varies case by case or needs to be decided experimentally or empirically.

Abstract: A method for simulating fluid flow includes: discretizing a space in which a fluid flows into a regular lattice; assuming that fluid particles repetitively move and collide in the lattice; deriving a univariate polynomial equation by comparing the n-th (n is a non-negative integer) order momentum of velocity between the Maxwell-Boltzmann distribution and the discretized Maxwell-Boltzmann distribution; calculating the weight coefficients corresponding to the discrete velocities of the fluid particles based on the univariate polynomial equation; and deriving a lattice Boltzmann model using the weight coefficients. A lattice Boltzmann model with superior stability and accuracy may be derived easily.

Abstract: The invention relates to linear programming methods and systems. The linear programming model has at least one input streams, at least one intermediate stream, and at least one output stream. The linear programming model is utilized for simulating the effect of withdrawing at least a portion of an intermediate steam on one or more of the model's outputs.

Abstract: An apparatus for controlling grille aperture ratios of a plurality of air transfer grilles which are installed in a room, includes a determining unit for determining target grille air volumes of air blowing to the racks, for determining simulation air volumes of air blowing from the air transfer grilles on the basis of the target grille air volumes so that each of air of the target grille air volumes are blown to the racks, and for determining grille aperture ratios for each of the air transfer grilles on the basis of the plurality of simulation air volumes so that each of the amounts of air blowing from the air transfer grilles is replaced by each of the simulation air volumes, and a controller for controlling each of the grille aperture ratios of the air transfer grilles on the basis of each of the determined grille aperture ratios.

Abstract: A method for predicting time-lapse seismic timeshifts in a three-dimensional geomechanical system including defining physical boundaries for the geomechanical system. In addition, one or more reservoir characteristics such as pore pressure and/or temperature history are acquired from multiple wells within the physical boundaries. The method also includes determining whether a formation in the geomechanical system is in an elastic regime or a plastic regime. The method also includes obtaining first and second seismic data sets for the geomechanical system, taken at first and second times. The method also includes running a geomechanical simulation to simulate the effects of changes in pore pressure or other reservoir characteristic on time-lapse seismic timeshifts in the formation.

Abstract: A computerized method for creating a 2D or 3D finite element model of a rubber composite of a rubber matrix and fillers is disclosed. In the case of the 2D finite element model, a primary finite element model of the rubber composite is first created by defining a rubber matrix model of the rubber matrix and filler models of the fillers by the use of rectangular elements. Then, a second finite element model as the target 2D finite element model is created by moving boundary nodes positioned at boundaries between the rubber matrix model and filler models in the primary finite element model so that concavity and convexity of the surface of each filler model becomes less, whereby, in the second finite element model, some of the rectangular elements including the moved boundary nodes are deformed, but the rest of the rectangular elements are not deformed.

Abstract: A computer-implemented method and non-transitory computer medium for calculating a shrinkage of a molding product comprises a step of using a computer processor to calculate a molding pressure of a molding fluid in a molding cavity by taking into consideration an increase of a shear viscosity of the molding fluid by a decrease of a shear rate, and a step of calculating the shrinkage of the molding products by taking into consideration a variation of a specific volume of the molding fluid as the molding pressure and a molding temperature decrease.

Abstract: The invention relates to a method for simulating dynamic fluids comprising a plurality of pseudo particles.

Abstract: A system includes a computing device that includes a memory for storing a three-dimensional model that represents particles of a coarse fire simulation. The computing device also includes a graphics refiner for producing two-dimensional simulation segments from the three-dimensional model that represents particles of a coarse fire simulation. The separation distance between two or more of the two-dimensional simulation segments is based upon a level of spatial detail provided by the coarse fire simulation. The graphics refiner is configured to separately process the two-dimensional simulation segments to produce a detailed fire simulation.

Abstract: A method for hybrid computational fluid dynamics (CFD) approach for modeling a bounded domain, such as a data center, is disclosed. The CFD modeling approach divides the bounded domain into one or more viscous regions and one or more inviscid regions, and then performs a viscous domain solve for the viscous region(s) using a computational fluid dynamics model with turbulence equations (i.e., a turbulence model), and performs inviscid domain solve for the inviscid region(s) using a set of inviscid equations (or potential flow equations). After solving for the different regions, results of the viscous domain solve and the inviscid domain solve are provided as a model of the bounded domain.

Abstract: A fan selection method is provided. The method determines an optimal amount of each type of fan to be used in a cabinet. The optimal amount of each type of fan is determined by an intersection between a fan performance curve and an airflow resistance curve of the cabinet. The model number and optimal amount of each type of fan is output to a user.

Abstract: A thermal-fluid-simulation analyzing apparatus includes an execution unit that generates an analysis model using analysis conditions to conduct a first thermal fluid simulation analysis based on the generated analysis model, an analysis-condition collecting unit that collects analysis conditions when a predetermined period passes after the first thermal fluid simulation analysis, a condition extracting unit that extracts a boundary condition from the analysis conditions collected by the analysis-condition collecting unit, and a re-execution unit that selects a region corresponding to the boundary condition extracted by the condition extracting unit from regions of the analysis model generated by the execution unit, updates the selected region with the boundary condition, and conducts a second thermal fluid simulation analysis for the updated analysis model.

Abstract: A hybrid computational fluid dynamics (CFD) approach for modeling a bounded domain, such as a data center, is disclosed. The CFD modeling approach divides the bounded domain into one or more viscous regions and one or more inviscid regions, and then performs a viscous domain solve for the viscous region(s) using a computational fluid dynamics model with turbulence equations (i.e., a turbulence model), and performs inviscid domain solve for the inviscid region(s) using a set of inviscid equations (or potential flow equations). After solving for the different regions, results of the viscous domain solve and the inviscid domain solve are provided as a model of the bounded domain.

Abstract: Systems and methods for refining ALE elements in a time-marching simulation are disclosed. A FEA model representing a physical domain is defined and used in a time-marching simulation that simulates physical phenomena of the physical domain. Certain ones of the ALE elements are refined upon detecting a user-defined triggering condition. Each of said certain ones of the ALE elements is refined into a number of child elements. When an ALE element contains more than one material, volume fractions representing respective materials are calculated in each of the child elements right after each refinement. At each advection phase, each donor maps its flux to one or more receptors. When a donor maps its flux to multiple receptors, each receptor calculates its own share of the flux from the donor. When the donor contains more than one material, each receptor must account for such situation.

Abstract: Methods of using computer based models for interaction between a lotion and a surface.

Abstract: Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

Abstract: A method is disclosed for building a predictive or forward model adapted for predicting the future evolution of a reservoir, comprising: integrating together a plurality of measurements thereby generating an integrated set of deep reading measurements, the integrated set of deep reading measurements being sufficiently deep to be able to probe the reservoir and being self-sufficient in order to enable the building of a reservoir model and its associated parameters; generating a reservoir model and associated parameters in response to the set of deep reading measurements; and receiving, by a reservoir simulator, the reservoir model and, responsive thereto, generating, by the reservoir simulator, the predictive or forward model.

Abstract: Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

Abstract: There is provided a system and method for obtaining a model of data describing a physical structure. An exemplary method comprises defining a three-dimensional (3D) object that corresponds to a physical structure. The 3D object comprises a set of topological elements that each has an initial geometric definition. The exemplary method also comprises creating a subsequent model of the data by updating a subset of the topological elements in the 3D object. Each updated element in the subset has a geometric definition that has changed relative to its initial geometric definition.

Abstract: A computer-implemented method for applying details in a simulation includes obtaining first data corresponding to a first simulation of matter in a space domain. The method includes performing, using the first data, a second simulation of the matter producing second data representing details for the first simulation, the second data distributed in the space domain using a grid where each cell has a common depth-to-size ratio from a camera perspective. The method includes rendering an image of the matter, wherein the second data is obtained from the grid and used in the rendering.

Abstract: A pneumatic device selection system includes a standard circuit selection processor for selecting a cylinder operating system based on input data, an independent characteristic calculation processor for calculating characteristics of the cylinder operating system based on entered usage conditions, a branching and joining circuit processor for selecting a branching and joining circuit based on input data and calculating characteristics of the selected branching and joining circuit, a manifold circuit processor for selecting a manifold circuit based on input data and calculating characteristics of the selected manifold circuit, and a shock absorber selection processor for selecting a shock absorber based on input data and/or a selection result from the standard circuit selection processor.

Abstract: Computer-implemented methods and non-transitory computer readable storage media facilitate calculating outflow of water from a selected catchment. A computer-implemented method calculates an outflow of water from a selected catchment is calculated. An identification of a selected catchment from a plurality of catchments within a geographical area is received from a user workstation. A database of multilayered data is accessed, where the data includes hydrological data, geophysical data, and meteorological data for each of the plurality of catchments within the geographical area. From the multilayered data, one or more additional catchments are automatically identified within the plurality of catchments, to identify a group of navigated catchments that drain into the selected catchment. For a given time period, a model is generated determining an outflow of water from the selected catchment and the group of navigated catchments.

Abstract: A history matching method by gradual deformation of a fault network associated with a geological model is disclosed having application to notably petroleum reservoir development. A fault network is constructed by drawing fault centers in a multifractal density map constructed by a multiplicative cascading and by generating a fault for each fault center. History matching of the model is then performed by deforming the fault network through continuous deformation of the multifractal density map, then by reiterating the center drawing and fault generation stages.

Abstract: A method of modifying a geological model representative of an underground reservoir is disclosed which respects average proportions of the lithologic facies imposed by a production data calibration process which has application to petroleum reservoir development. A geographical zone Z is defined within the geological model and an average proportion in zone Z allowing the production data to be calibrated is determined for k facies, with an optimization process. The proportions of these facies are modified using a block indicator cokriging method constrained by the average proportions to be respected. A new geological model constrained by the modified facies proportions is simulated and the development of the underground medium is optimized by the simulated model.

Abstract: Concepts and technologies are disclosed herein for modeling propulsion-related interfaces in computational fluid dynamics (“CFD”). According to some embodiments disclosed herein, a model is obtained or developed and propulsion-related interfaces within the model are identified. Flow directions of velocities, temperature, and/or mass are calculated adjacent to the propulsion-related interface and compared. A mass flow rate, a conserved variable state jump, a change in flux across the interface, and/or incoming and outgoing flux values can be calculated for the propulsion-related interface. The calculated values can be returned and embedded in the model. The model is solved and a solution is output.

Abstract: Methods of using computer based models for simulating the physical behavior of webs.

Abstract: Method and actuator system for a Kellyguard valve disposed in a drill string. The actuator system includes a sleeve that includes a cavity; an actuator disposed inside the cavity and configured to rotate the Kellyguard valve; first and second external regions of the sleeve having plural holes configured to receive a medium under pressure for actuating the actuator; a ring provided around the first and second external regions of the sleeve and configured to be fixed, the ring having first and second internal grooves facing the first and second external regions, respectively; and first and second seals provided inside the first and second grooves, respectively, at least one of the first and second seals being configured to not touch the first or second external regions of the sleeve when in a collapsed state and to touch the first or second external regions when in an inflated state.

Abstract: A porous medium exploitation method having application to petroleum exploitation is disclosed using coupling between a reservoir model and a near-wellbore model for modelling fluid flows. Fluid flows within the medium are simulated using a reservoir simulator and a near-wellbore simulator. At each time step, the boundary conditions used by the second simulator are calculated by means of with the reservoir simulator. Numerical productivity indices used by the reservoir simulator are calculated by means of using the near-wellbore simulator. The fluid flows within the porous medium during a given period of time are modelled by repeating the previous stages for several time steps. An optimum medium exploitation scenario is deduced determined from this modelling by taking into accounting for, for example, a well damage due to a drilling fluid, an injection of a polymer solution or of an acid solution in the well.

Abstract: A method of modelling a fractured reservoir having application for petroleum reservoir development is disclosed utilizing a set of several families of equivalent blocks of regular shapes and sizes. The fractured reservoir is modelled by a complex porous medium made up of irregular blocks. A function defining the progress of an imbibition front within these blocks, whose derivative A?(X) is calculated, is determined. A function defining the progress of an imbibition front within regular equivalent blocks, whose derivative A?eq(X) is calculated, is then determined. This derivative, which constitutes at least two line segments with distinct slopes, depends on the dimensions of the equivalent blocks. Finally, the dimensions of the equivalent blocks are obtained by adjusting the two derivatives A?eq(X) and A?(X).

Abstract: A method of modeling a subsurface hydrogeologic system within a study area can include applying an electric current directly to the subsurface hydrogeologic system and monitoring a magnetic field generated by the electric current in the subsurface hydrogeologic system. An electric current distribution can be identified within the study area by an inversion process based on the magnetic field. A model of the electric current distribution can be created.