TY - GEN
T1 - Numerical investigation of flow control mechanisms for drag reduction in supersonic base-flows
AU - Sivasubramanian, Jayahar
AU - Sandberg, Richard D.
AU - Von Terzi, Dominic A.
AU - Fasel, Hermann F.
PY - 2006
Y1 - 2006
N2 - Supersonic axisymmetric base flows are prototypical for flows behind projectiles and missiles. There is evidence that large (turbulent) coherent structures exist in these flows and strongly influence the mean flow. The objective of the present investigation is to evaluate if and how successful passive flow control techniques modify the large structures and the mean flow. To this end, numerical simulations using two hybrid RANS/LES methods, the Flow Simulation Methodology (FSM) and Detached Eddy Simulations (DES), were employed to investigate the supersonic base flow at ReD = 3.3 × 10 6 and Ma = 2.46. As a passive control method, boat-tailing is studied. The obtained mean flow data and the turbulent coherent structures are compared to available experimental results and to simulations without flow control.
AB - Supersonic axisymmetric base flows are prototypical for flows behind projectiles and missiles. There is evidence that large (turbulent) coherent structures exist in these flows and strongly influence the mean flow. The objective of the present investigation is to evaluate if and how successful passive flow control techniques modify the large structures and the mean flow. To this end, numerical simulations using two hybrid RANS/LES methods, the Flow Simulation Methodology (FSM) and Detached Eddy Simulations (DES), were employed to investigate the supersonic base flow at ReD = 3.3 × 10 6 and Ma = 2.46. As a passive control method, boat-tailing is studied. The obtained mean flow data and the turbulent coherent structures are compared to available experimental results and to simulations without flow control.
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U2 - 10.2514/6.2006-902
DO - 10.2514/6.2006-902
M3 - Conference contribution
AN - SCOPUS:34250802556
SN - 1563478072
SN - 9781563478079
T3 - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
SP - 10775
EP - 10784
BT - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 44th AIAA Aerospace Sciences Meeting 2006
Y2 - 9 January 2006 through 12 January 2006
ER -