Numerical experiments on stability and transition in plane channel flow
作者： Steven E. Krist , Thomas A. Zang
DOI: 10.1007/BF00271421
关键词:
摘要: Various secondary and tertiary instabilities in plane channel flow are explored via time-dependent numerical simulations using the incompressible Navier-Stokes equations. Comparisons made between transitional flows at Reynolds numbers 1500, 5000, 8000. The lambda vortex, detached shear layer, inverted vortex regions identified origin of latter is explained. laminar breakdown Re=1500 computed with high resolution nature its ensuing hairpin eddies clarified by particle paths. potential center-mode rather than wall-mode transitions proposed resulting structure described.
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