Swirling jet actuator for control of separated and mixing flows

US10393156B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10393156-B2
Application numberUS-201815925991-A
CountryUS
Kind codeB2
Filing dateMar 20, 2018
Priority dateMar 3, 2014
Publication dateAug 27, 2019
Grant dateAug 27, 2019

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method of controlling a fluid flow using momentum and/or vorticity injections. Actively controlling an actuator allows for direct, precise, and independent control of the momentum and swirl entering into the fluid system. The perturbations are added to the flow field in a systematic mater providing tunable control input, thereby modifying behavior thereof in a predictable manner to improve the flow characteristics.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of controlling a fluid flow, comprising the steps of: inputting a momentum flow into a fluid flow; and inputting a swirling flow into the fluid flow. 2. The method of claim 1 , wherein the momentum flow is inputted in an orientation that is normal to a surface of a body over which the fluid flow is passing. 3. The method of claim 1 , wherein the swirling flow is inputted in an orientation that is normal to a surface of a body over which the fluid flow is passing. 4. The method of claim 1 , wherein the momentum flow is inputted in an orientation such that a central axis, about which the swirling flow rotates is normal to a surface of a body over which the fluid flow is passing, and the swirling flow is inputted in an orientation such that a central axis, about which the swirling flow rotates, is normal to the surface of the body over which the fluid flow is passing. 5. The method of claim 1 , wherein the momentum flow is variable. 6. The method of claim 1 , wherein the swirling flow is variable. 7. The method of claim 1 , wherein the momentum flow and swirling flow are actively controllable. 8. The method of claim 1 , wherein the inputting occurs near the time-averaged separation point on a body over which the fluid flow is passing. 9. The method of claim 1 , wherein the inputting occurs at a plurality of actuator sites such that each actuator site includes a swirling flow input and each swirling flow input has an initial direction of rotation that is opposite of the initial direction of rotation of the swirling flow input of an adjacently located actuator site. 10. The method of claim 1 wherein the inputting occurs at a plurality of actuator sites such that each actuator site includes a swirling flow input and each swirling flow input has an initial direction of rotation that is in the same initial direction of rotation of the swirling flow input of an adjacently located actuator site. 11. A method of controlling a fluid flow, comprising the step of inputting a swirling flow into the fluid flow, wherein the inputting occurs at a plurality of actuator sites such that each actuator site includes a swirling flow input and each swirling flow input has an initial direction of rotation that is opposite of the initial direction of rotation of the swirling flow input of an adjacently located actuator site. 12. The method of claim 11 , further comprising inputting a momentum flow. 13. The method of claim 12 , wherein the momentum flow is inputted in an orientation that is normal to a surface of a body over which the fluid flow is passing. 14. The method of claim 11 , wherein the inputting occurs near the time-averaged separation point on a body over which the fluid flow is passing. 15. A method of controlling a fluid flow, comprising the step of inputting a swirling flow into the fluid flow, wherein the inputting occurs at a plurality of actuator sites such that each actuator site includes a swirling flow input and each swirling flow input has an initial direction of rotation that is in the same initial direction of rotation of the swirling flow input of an adjacently located actuator site.

Assignees

Inventors

Classifications

  • by influencing the boundary layer · CPC title

  • F15D1/007Primary

    comprising surfaces being moved by external supplied energy · CPC title

  • F15D1/009Primary

    by means of vortex rings · CPC title

  • adjustable · CPC title

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Frequently asked questions

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What does patent US10393156B2 cover?
A method of controlling a fluid flow using momentum and/or vorticity injections. Actively controlling an actuator allows for direct, precise, and independent control of the momentum and swirl entering into the fluid system. The perturbations are added to the flow field in a systematic mater providing tunable control input, thereby modifying behavior thereof in a predictable manner to improve th…
Who is the assignee on this patent?
Univ Florida State Res Found Inc
What technology area does this patent fall under?
Primary CPC classification F15D1/007. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Aug 27 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).