Patent
Short subsonic diffuser for large pressure ratios
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TLDR
In this article, a wide angle diffuser with means for preventing boundary layer separation is described, which includes means for injecting a fluid stream into the diffuser at preselected locations for mixing with the boundary layer fluid.Abstract:
A short, wide angle diffuser having means for preventing boundary layer separation is disclosed. The means includes means for injecting a fluid stream into the diffuser at preselected locations for mixing with the boundary layer fluid. The injected fluid may be derived from the fluid exiting from the diffuser and fed back into the diffuser.read more
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Patent
Fluidic actuation for improved diffuser performance
TL;DR: In this article, a diffuser includes a curved passageway having a curvature convex relative to the main flow for utilizing the Coanda effect and a centerbody with an opening, each for providing a secondary flow of fluid into the diffuser.
Patent
Turbine exhaust diffuser with a gas jet producing a coanda effect flow control
John A. Orosa,Matthew Montgomery +1 more
TL;DR: An exhaust diffuser system and method for a turbine engine includes an inner boundary and an outer boundary with a flow path defined there between as discussed by the authors, which is defined at least in part by a hub structure that has an upstream end and a downstream end.
Patent
Devices and methods of operation thereof for providing stable flow for centrifugal compressors
TL;DR: In this paper, the authors describe a flow stabilizing device that acts upon the flow field discharging from the impeller of a centrifugal compressor and modify the field ahead of the diffuser vanes such that flow conditions contributing to rotating stall and surge are reduced or even eliminated.
Patent
Combustor inlet diffuser with boundary layer blowing
TL;DR: A gas turbine engine combustor inlet diffuser assembly has at least one diverging annular wall including a flowpath surface bounding a diffuser flowpath as mentioned in this paper, and an annular blowing slot is axially located along the ANNular wall and a blowing air flowpath leads to and is in fluid communication with the blowing slot.
Patent
Turbine exhaust diffuser with region of reduced flow area and outer boundary gas flow
TL;DR: An exhaust diffuser system and method for a turbine engine is described in this article. But it does not specify the inner boundary of the diffuser, and the outer boundary is not considered in this paper.
References
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Patent
Internal-combustion turbine plant
TL;DR: In this article, an internal combustion turbine is used to drive a multi-stage axial flow air compressor, either directly or through gearing, so that the speed of the compressor is always the same as or is in direct relation to the acceleration of the turbine.
Patent
Fluid jet pump
TL;DR: In this paper, a fluid jet pump or injector for conveying a fluid by means of a fast-moving stream of the same or another fluid and converting the velocity energy of the mixture into pressure energy in a diffuser is described.