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Numerical investigation of transitional supersonic base flows with flow control

Numerical investigation of transitional supersonic base flows with flow control
Numerical investigation of transitional supersonic base flows with flow control
Drag reduction by means of flow control is investigated for
supersonic base flows at Mach number M = 2.46 using Direct
Numerical Simulations (DNS) and the Flow Simulation Methodology
(FSM). The objective of the present work is to understand the
evolution of coherent structures in the flow and how flow control
techniques modify these structures. For such investigations,
simulation methods that capture the dynamics of the large turbulent
structures are required. DNS are performed for transitional base
flows at Re_D = 30,000. Due to the drastically increased
computational cost of DNS at higher Reynolds numbers, a hybrid
RANS/LES method (FSM) is applied to simulate base flows with flow
control at Re_D = 100,000. Active and passive flow control
techniques that alter the near-wake by introducing axisymmetric and
longitudinal perturbations are investigated. A detailed analysis of
the dynamics of the resulting turbulent (coherent) structures is
presented.
0022-4650
1021-1028
Sivasubramanian, Jayahar
4f4b22ee-7c62-40d3-8097-33991d221f14
Sandberg, Richard D.
41d03f60-5d12-4f2d-a40a-8ff89ef01cfa
von Terzi, Dominic A.
8b2ed53d-5f92-44e9-9d48-2101277e464c
Fasel, Hermann F.
94214693-3643-468b-ba2d-5bf062371d50
Sivasubramanian, Jayahar
4f4b22ee-7c62-40d3-8097-33991d221f14
Sandberg, Richard D.
41d03f60-5d12-4f2d-a40a-8ff89ef01cfa
von Terzi, Dominic A.
8b2ed53d-5f92-44e9-9d48-2101277e464c
Fasel, Hermann F.
94214693-3643-468b-ba2d-5bf062371d50

Sivasubramanian, Jayahar, Sandberg, Richard D., von Terzi, Dominic A. and Fasel, Hermann F. (2007) Numerical investigation of transitional supersonic base flows with flow control. Journal of Spacecraft and Rockets, 44 (5), 1021-1028. (doi:10.2514/1.28673).

Record type: Article

Abstract

Drag reduction by means of flow control is investigated for
supersonic base flows at Mach number M = 2.46 using Direct
Numerical Simulations (DNS) and the Flow Simulation Methodology
(FSM). The objective of the present work is to understand the
evolution of coherent structures in the flow and how flow control
techniques modify these structures. For such investigations,
simulation methods that capture the dynamics of the large turbulent
structures are required. DNS are performed for transitional base
flows at Re_D = 30,000. Due to the drastically increased
computational cost of DNS at higher Reynolds numbers, a hybrid
RANS/LES method (FSM) is applied to simulate base flows with flow
control at Re_D = 100,000. Active and passive flow control
techniques that alter the near-wake by introducing axisymmetric and
longitudinal perturbations are investigated. A detailed analysis of
the dynamics of the resulting turbulent (coherent) structures is
presented.

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More information

Submitted date: June 2006
Published date: September 2007
Organisations: Aerodynamics & Flight Mechanics

Identifiers

Local EPrints ID: 46018
URI: http://eprints.soton.ac.uk/id/eprint/46018
ISSN: 0022-4650
PURE UUID: a33229ff-6ee9-48b5-89d6-f9b5e3275a36
ORCID for Richard D. Sandberg: ORCID iD orcid.org/0000-0001-5199-3944

Catalogue record

Date deposited: 14 May 2007
Last modified: 15 Mar 2024 09:15

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Contributors

Author: Jayahar Sivasubramanian
Author: Richard D. Sandberg ORCID iD
Author: Dominic A. von Terzi
Author: Hermann F. Fasel

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