Invention Grant
- Patent Title: Shaped recess flow control
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Application No.: US13904513Application Date: 2013-05-29
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Publication No.: US09644903B1Publication Date: 2017-05-09
- Inventor: Vikram Shyam , Philip Poinsatte , Douglas Thurman
- Applicant: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Applicant Address: US DC Washington
- Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
- Current Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
- Current Assignee Address: US DC Washington
- Agent Robert H. Earp, III
- Main IPC: F28F23/00
- IPC: F28F23/00 ; F15D1/00 ; F01D9/06 ; F01D5/18 ; F28F13/18 ; F28F19/02

Abstract:
One or more embodiments of techniques or systems for shaped recess flow control are provided herein. A shaped recess or cavity can be formed on a surface associated with fluid flow. The shaped recess can be configured to create or induce fluid effects, temperature effects, or shedding effects that interact with a free stream or other structures. The shaped recess can be formed at an angle to a free stream flow and may be substantially “V” shaped. The shaped recess can be coupled with a cooling channel, for example. The shaped recess can be upstream or downstream from a cooling channel and aligned in a variety of manners. Due to the fluid effects, shedding effects, and temperature effects created by a shaped recess, lift-off or separation of cooling jets of cooling channels can be mitigated, thereby enhancing film cooling effectiveness.
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