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Large-Eddy Simulation of Separation Control for Compressible Flow Over a Wall-Mounted Hump

Franck, Jennifer A. and Colonius, Tim (2008) Large-Eddy Simulation of Separation Control for Compressible Flow Over a Wall-Mounted Hump. In: 46th AIAA Aerospace Sciences Meeting and Exhibit, 7-10 January 2008, Reno, NV.

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Compressible large-eddy simulations of turbulent flow over a wall-mounted hump with active flow control are performed and compared to previous experiments. We consider a range of Mach numbers from 0.1 to 0.6. Control is applied just before the natural separation point via steady suction and zero-net mass flux oscillatory forcing. Compared with the baseline flow, control shortens the separation bubble length, but is generally found to be less effective at compressible Mach numbers. The LES matches well to the available experimental data for the baseline and steady suction cases. With oscillatory forcing, the LES captures the major flow physics of the large scale shedding of vortical structures, but over-predicts the separation bubble length at low Mach numbers.

Item Type:Conference or Workshop Item (Paper)
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URLURL TypeDescription Paper Paper
Colonius, Tim0000-0003-0326-3909
Additional Information:© 2008 by Jennifer A. Franck and Tim Colonius. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Published Online: 19 Jun 2012. This work was partially supported by a National Science Foundation graduate student fellowship. Computational resources provided by the Department of Defense High Performance Computing Centers.
Funding AgencyGrant Number
NSF Graduate Research FellowshipUNSPECIFIED
Subject Keywords:Aerospace Systems, Operations and Life Cycle
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Other Numbering System NameOther Numbering System ID
AIAA Paper2008-555
Record Number:CaltechAUTHORS:20190718-165125724
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97253
Deposited By: Melissa Ray
Deposited On:22 Jul 2019 20:49
Last Modified:16 Nov 2021 17:30

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