Abstract: A mold assembly for use in forming a component having an outer wall of a predetermined thickness includes a mold and a jacketed core. The jacketed core includes a jacket that includes a first jacket outer wall coupled against an interior wall of the mold, a second jacket outer wall positioned interiorly from the first jacket outer wall, and at least one jacketed cavity defined therebetween. The at least one jacketed cavity is configured to receive a molten component material therein. The jacketed core also includes a core positioned interiorly from the second jacket outer wall. The core includes a perimeter coupled against the second jacket outer wall. The jacket separates the perimeter from the interior wall by the predetermined thickness, such that the outer wall is formable between the perimeter and the interior wall.

Abstract: A method of forming a component includes coupling a jacket around at least a portion of a precursor component to form a jacketed precursor component. The jacket is shaped to correspond to a net shape of an outer surface of the component. A mold is formed around the jacketed precursor component. A component material in a fluid state is introduced into a jacketed cavity defined in the mold to form the component. The jacketed cavity is defined in a space at least partially created by removal of the precursor component from the jacketed precursor component.

Abstract: A component configured for impingement cooling includes an inner wall defining a plurality of apertures. Each aperture of the plurality of apertures is configured to emit a cooling fluid therethrough. The component also includes an outer wall spaced from the inner wall. The outer wall and the inner wall extend along a longitudinal axis of the component. The component further includes a plurality of angled walls extending between the inner wall and the outer wall. The plurality of angled walls define a plurality of angled channels in fluid communication with the plurality of apertures. Each angled wall of the plurality of angled walls extends at an acute angle relative to the longitudinal axis.

Abstract: A method of forming a component including coupling an array of receptacles to a mold core. Each receptacle in the array contains an amount of uncured mold material. The method further includes forming a layer of fugitive material on the mold core such that the array of receptacles is encapsulated within the layer of fugitive material. The method also includes forming a layer of uncured mold material on the layer of fugitive material, thereby forming an uncured mold assembly. The uncured mold assembly is heated to a temperature that solidifies the uncured mold material within each receptacle and of the layer, thereby forming an array of pins and a layer of solidified mold material. The uncured mold assembly is also heated to the temperature that removes the layer of fugitive material from between the mold core and the layer of solidified mold material such that a mold cavity, including the array of pins, is defined therebetween.

Abstract: A turbine engine assembly including a rotating detonation combustor configured to combust a fuel-air mixture. The rotating detonation combustor includes a radially inner side wall, a radially outer side wall extending about the radially inner side wall such that an annular combustion chamber is at least partially defined therebetween, and a cooling conduit extending along at least one of the radially inner side wall or the radially outer side wall. The assembly also includes a first compressor configured to discharge a flow of cooling air towards the rotating detonation combustor, and to channel the flow of cooling air through the cooling conduit.

Abstract: A component includes an outer wall that includes an exterior surface and an opposite interior surface. The component also includes at least one internal void defined adjacent the interior surface and configured to receive a cooling fluid therein. The component further includes a plurality of openings defined in and extending through the outer wall such that the outer wall defines an edge of each of the plurality of openings. Additionally, the component includes a plurality of separable plugs each positioned in a corresponding opening. Each of the separable plugs is sized to fit within the corresponding opening such that a clearance gap is defined between the separable plug and the edge of the corresponding opening. Each of the separable plugs is coupled to the outer wall by at least one tab that extends across the clearance gap from the each separable plug to the edge of the corresponding opening.

Abstract: A component is formed from a component material introduced into a mold assembly. The mold assembly includes a mold that has a cavity defined therein by an interior wall. The cavity receives the component material in a molten state to form the component. A multiple component core assembly is positioned with respect to the mold and has a first core component attached to a second core component at a core split line. A core connection component is attached to each of the first and second core components at the core split line, such that the first core component is held adjacent the second core component at the core split line. The core connection component is formed from a connection component material that is at least partially absorbable by the component material.

Abstract: A turbomachinery component for a turbomachine includes feed manifold, a return manifold and a sidewall. The feed manifold is configured to receive a coolant stream therein and includes a plurality of feed plenums. The return manifold includes a plurality of return plenums. The sidewall defines a plurality of feed channels and a plurality of return channels therein. The sidewall further includes an inner surface and an outer surface opposite the inner surface. Each feed channel is in fluid communication with at least one of the feed plenums. Each return channel is in fluid communication with at least one of the return plenums. The sidewall further at least partially defines a plurality of microchannels. Each microchannel is in fluid communication with one of the feed channels and one of the return channels.

Abstract: A component configured for impingement cooling includes an inner wall defining a plurality of apertures extending therethrough. Each aperture of the plurality of apertures is configured to emit a cooling fluid therethrough. The component also includes an outer wall that includes an exterior surface, an opposite interior surface, and a thickness defined therebetween. The component further includes a plurality of recesses defined in the outer wall. Each recess of the plurality of recesses extends from a recess first end to an opposite recess second end. The second recess end is defined at the interior surface, and the recess first end is positioned within the outer wall at a depth less than the thickness. Each recess is aligned with a corresponding aperture of the plurality of apertures to receive the cooling fluid therefrom.

Abstract: A method of forming a component includes coupling a jacket around at least a portion of a precursor component to form a jacketed precursor component. The jacket is shaped to correspond to a net shape of an outer surface of the component. A mold is formed around the jacketed precursor component. A component material in a fluid state is introduced into a jacketed cavity defined in the mold to form the component. The jacketed cavity is defined in a space at least partially created by removal of the precursor component from the jacketed precursor component.

Abstract: Various embodiments include a heat transfer device, while other embodiments include a turbine component. In some cases, the device can include: a body portion having an inner surface and an outer surface, the inner surface defining an inner region; at least one aperture in the body portion, the at least one aperture positioned to direct fluid from the inner region through the body portion; and at least one fluid receiving feature formed in the outer surface of the body portion, the at least one fluid receiving feature positioned to receive post-impingement fluid from the at least one aperture, wherein the at least one aperture does not define any portion of the at least one fluid receiving feature, and the at least one fluid receiving feature segregates relatively higher velocity post-impingement fluid from relatively lower velocity fluid within an impingement cross-flow region.

Abstract: Various aspects include a turbomachine component, along with a turbomachine and related storage medium. In some cases, the turbomachine component includes: a body defining an inner cavity, the body having an outer surface and an inner surface opposing the outer surface, the inner surface facing the inner cavity; and a mount coupled with the inner surface of the body, the mount including: an impingement baffle coupled with and separated from the inner surface of the body, the impingement baffle including a set of apertures configured to permit flow of a heat transfer fluid therethrough to contact the inner surface of the body; and a reclamation channel connected with the impingement baffle for reclaiming the heat transfer fluid.

Abstract: A mold assembly for use in forming a component having an outer wall of a predetermined thickness includes a mold and a jacketed core. The jacketed core includes a jacket that includes a first jacket outer wall coupled against an interior wall of the mold, a second jacket outer wall positioned interiorly from the first jacket outer wall, and at least one jacketed cavity defined therebetween. The at least one jacketed cavity is configured to receive a molten component material therein. The jacketed core also includes a core positioned interiorly from the second jacket outer wall. The core includes a perimeter coupled against the second jacket outer wall. The jacket separates the perimeter from the interior wall by the predetermined thickness, such that the outer wall is formable between the perimeter and the interior wall.

Abstract: A mold assembly for use in forming a component having an outer wall of a predetermined thickness is provided. The mold assembly includes a mold that includes an interior wall that defines a mold cavity within the mold. The mold assembly also includes a jacketed core positioned with respect to the mold. The jacketed core includes a jacket that includes an outer wall. The jacketed core also includes a core positioned interiorly of the jacket outer wall. The jacket separates a perimeter of the core from the mold interior wall by the predetermined thickness, such that the outer wall is formable between the perimeter and the interior wall.

Abstract: A system and method for measuring cooling effectiveness of a component is disclosed. The method includes providing a component having a surface provided with a coating including a volatilization-susceptible constituent and a volatilization-resistant constituent. Further, the method includes supplying a first gaseous medium over the surface of the component through a plurality of holes in the component and feeding a second gaseous medium along the surface of the component. The method includes exposing the surface of the component to the first and second gaseous mediums for a predetermined period. The method further includes determining a thickness of the coating exposed to the flow of the first and second gaseous mediums. The method includes analyzing the thickness of the coating to determine whether the coating is removed from the surface of the component upon exposure to the first and second gaseous mediums.

Abstract: A system and method for measuring cooling effectiveness of a component is disclosed. The method includes providing a component having a surface provided with a coating including a volatilization-susceptible constituent and a volatilization-resistant constituent. Further, the method includes supplying a first gaseous medium over the surface of the component through a plurality of holes in the component and feeding a second gaseous medium along the surface of the component. The method includes exposing the surface of the component to the first and second gaseous mediums for a predetermined period. The method further includes determining a thickness of the coating exposed to the flow of the first and second gaseous mediums. The method includes analyzing the thickness of the coating to determine whether the coating is removed from the surface of the component upon exposure to the first and second gaseous mediums.

Abstract: A system and method for measuring cooling effectiveness of a component is disclosed. The method includes providing a component with a coating applied on a surface of the component. Further, the method includes supplying a first gaseous medium over a surface of the component through a plurality of holes in the component and feeding a second gaseous medium along the surface of the component. Further, the method includes exposing the surface of the component to the first and second gaseous mediums for a predetermined period. The method further includes obtaining an image of the surface of the component exposed to the first and second gaseous mediums for the predetermined period. The method includes analyzing the obtained image to determine whether at least a portion of the coating is removed from the surface of the component upon exposure to the second gaseous medium.

Abstract: A system and method for measuring cooling effectiveness of a component is disclosed. The method includes providing a component with a coating applied on a surface of the component. Further, the method includes supplying a first gaseous medium over a surface of the component through a plurality of holes in the component and feeding a second gaseous medium along the surface of the component. Further, the method includes exposing the surface of the component to the first and second gaseous mediums for a predetermined period. The method further includes obtaining an image of the surface of the component exposed to the first and second gaseous mediums for the predetermined period. The method includes analyzing the obtained image to determine whether at least a portion of the coating is removed from the surface of the component upon exposure to the second gaseous medium.

Abstract: The present application provides an abradable bucket shroud for use with a bucket tip so as to limit a leakage flow therethrough and reduce heat loads thereon. The abradable bucket shroud may include a base and a number of ridges positioned thereon. The ridges may be made from an abradable material. The ridges may form a pattern. The ridges may have a number of curves with at least a first curve and a second curve and with the second curve having a reverse camber shape.

Abstract: The present application provides an abradable bucket shroud for use with a bucket tip so as to limit a leakage flow therethrough and reduce heat loads thereon. The abradable bucket shroud may include a base and a number of ridges positioned thereon. The ridges may be made from an abradable material. The ridges may form a pattern. The ridges may have a number of curves with at least a first curve and a second curve and with the second curve having a reverse camber shape.