On vortex/wave interactions. Part 1. Non-symmetrical input and cross-flow in boundary layers.
Journal of Fluid Mechanics
101 - 133.
Available under License : See the attached licence file.
The paper studies certain effects of non-symmetry on vortex/wave interactions, for inviscid inflexional waves interacting nonlinearly with the vortex component of the mean flow in boundary-layer transition at large Reynolds number. Two types of non-symmetry are investigated, namely for unequal input wave amplitudes and for small cross-flows. These lead to coupled integro-differential equations for spatial development of the wave amplitudes, which are examined in an essentially equivalent differential form for various degrees of the non-symmetry present. Each type of non-symmetry can have a significant influence on the nonlinear interaction properties. Special emphasis is given to bounded solutions, and numerous interesting new flow responses are found analytically and computationally. The theory provides a basis for tackling enhanced non-symmetry in the input or stronger cross-flows.
|Title:||On vortex/wave interactions. Part 1. Non-symmetrical input and cross-flow in boundary layers|
|Open access status:||An open access version is available from UCL Discovery|
|Additional information:||© 1996 Cambridge University Press|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Mathematics
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