Numerical Investigation of Classical and Bypass Transition in Streamwise Corner-flow☆
Numerical Investigation of Classical and Bypass Transition in Streamwise Corner-flow☆
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流向角流中经典和旁路转变的数值研究â
DOI:
10.1016/j.piutam.2015.03.043
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
U. Rist
中科院分区:
文献类型:
--
作者:
O. Schmidt;U. Rist
The laminar-turbulent transition of the flow in a zero-pressure-gradient streamwise corner is investigated by means of direct nu- merical simulation (DNS). Two basic scenarios are considered: transition caused by harmonic Tollmien-Schlichting type waves within the boundary-layer, and bypass transition triggered by homogeneous isotropic turbulence in the free-stream. In the first case, we further distinguish between waves that are symmetric, and waves that are anti-symmetric with respect to the corner bisector. It is found that turbulence originates from the corner in the classical boundary-layer transition scenario for both, symmetric and anti-symmetric perturbations. However, no such preference for the near-corner region is observed in bypass transition.
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DOI:
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发表时间:
2010
期刊:
影响因子:
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作者:
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DOI:
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发表时间:
2013
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1978
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1981
期刊:
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
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作者:
M. Zamir
通讯作者:
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