Abstract: Disclosed is a computerized process and system for modeling aeraulic flows in an environment in particular for the evaluation of the risks of airborne contamination. The principle of the process consists in considering that in a given individual unit or mesh, defined as fairly small, the final values of the primitive variables (V, P, T) are the result of their primary values calculated in an irrotational field composed of a “pressure-velocity” coupling with a turbulence model adapted to Newtonian and incompressible fluids belonging to the range of validity of the process.
Type:
Grant
Filed:
April 10, 2013
Date of Patent:
September 11, 2018
Assignee:
HYGIE-TECH SA
Inventors:
Philippe Le Goff, Catherine Hugel-Le Goff
Abstract: Disclosed is a computerized process and system for modeling aeraulic flows in an environment in particular for the evaluation of the risks of airborne contamination. The principle of the process consists in considering that in a given individual unit or mesh, defined as fairly small, the final values of the primitive variables (V, P, T) are the result of their primary values calculated in an irrotational field composed of a “pressure-velocity” coupling with a turbulence model adapted to Newtonian and incompressible fluids belonging to the range of validity of the process.
Type:
Application
Filed:
April 10, 2013
Publication date:
March 12, 2015
Applicant:
HYGIE-TECH SA
Inventors:
Philippe Le Goff, Catherine Hugel-Le Goff
Abstract: A system for accurately locating and positioning a person moving or standing still inside a hostile or severely damaged environment. For a person walking through any given environment, the location system continuously provides coordinates for positioning the person within the environment relative to the entry point thereof. The location system uses the morphological data of the person and integrates the person's movement in real time by acquiring features of the person's pace as the result of simultaneously combining the angles formed by the ankles, knees and hips of the person when walking, measured by electrogoniometers and interpreted according to a developed calculation method. The location system outdoes other existing solutions for locating a person in a difficult environment, such as, inside an underground building, partially collapsed and filled with opaque smoke, without the risk of faulty measurements, since it does not track by waves or by any vision-based system.
Type:
Application
Filed:
April 13, 2011
Publication date:
May 2, 2013
Applicant:
HYGIE-TECH SA
Inventors:
Philippe Le Goff, Catherine Hugel-Le Goff, Raymond Andrieu