Experimental flow reconstruction using resolvent analysis and data-assimilation
Experimental flow reconstruction using resolvent analysis and data-assimilation
A flow reconstruction methodology utilizing resolvent analysis and data-assimilation is applied to flow around a NACA 0018 airfoil at an angle of attack α = 10° and chord-based Reynolds number Re = 10250. The underlying principle of the reconstruction is to maximize the value of limited experimental measurements as the only inputs are a rough approximation of the mean profile and two time-resolved probes. The input data may be incomplete, in the sense that measurements near a body are difficult to obtain with techniques such as particle image velocimetry (PIV), or contaminated by noise. The final reconstruction contains less measurement noise compared to the PIV data and obeys the incompressible Navier-Stokes equations (NSE).
Australasian Fluid Mechanics Society
Symon, S.
2e1580c3-ba27-46e8-9736-531099f3d850
McKeon, B. J.
4f338f42-224d-41f4-b3ac-c4ca1afc582f
18 December 2018
Symon, S.
2e1580c3-ba27-46e8-9736-531099f3d850
McKeon, B. J.
4f338f42-224d-41f4-b3ac-c4ca1afc582f
Symon, S. and McKeon, B. J.
(2018)
Experimental flow reconstruction using resolvent analysis and data-assimilation.
Lau, Timothy C.W. and Kelso, Richard M.
(eds.)
In Proceedings of the 21st Australasian Fluid Mechanics Conference, AFMC 2018.
Australasian Fluid Mechanics Society..
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Conference or Workshop Item
(Paper)
Abstract
A flow reconstruction methodology utilizing resolvent analysis and data-assimilation is applied to flow around a NACA 0018 airfoil at an angle of attack α = 10° and chord-based Reynolds number Re = 10250. The underlying principle of the reconstruction is to maximize the value of limited experimental measurements as the only inputs are a rough approximation of the mean profile and two time-resolved probes. The input data may be incomplete, in the sense that measurements near a body are difficult to obtain with techniques such as particle image velocimetry (PIV), or contaminated by noise. The final reconstruction contains less measurement noise compared to the PIV data and obeys the incompressible Navier-Stokes equations (NSE).
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Published date: 18 December 2018
Additional Information:
Funding Information:
The authors would like to acknowledge the financial support of the Army Research Office (Grant No. W911NF-17-1-0306) and the Office of Naval Research (Grant No. N00014-17-1-3022).
Publisher Copyright:
© 2018 Australasian Fluid Mechanics Society. All rights reserved.
Venue - Dates:
21st Australasian Fluid Mechanics Conference, AFMC 2018, , Adelaide, Australia, 2018-12-10 - 2018-12-13
Identifiers
Local EPrints ID: 483504
URI: http://eprints.soton.ac.uk/id/eprint/483504
PURE UUID: c6d85fb9-678f-4985-9bdd-ffe71fb434f6
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Date deposited: 31 Oct 2023 18:24
Last modified: 17 Mar 2024 13:33
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Contributors
Author:
B. J. McKeon
Editor:
Timothy C.W. Lau
Editor:
Richard M. Kelso
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