Receptivity of hypersonic boundary layer due to fast-slow acoustics interaction
作者： Jun Gao , Ji-Sheng Luo , Xue-Song Wu
DOI: 10.1007/S10409-015-0504-8
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摘要: The objective of receptivity is to investigate the mechanisms by which external disturbances generate unstable waves. In hypersonic boundary layers, a new process revealed, that fast and slow acoustics through nonlinear interaction can excite second mode near lower-branch mode. They sum-frequency disturbance though interaction, This generated nonparallel nature layer. coefficient sensitive wavenumber difference between When zero, maximum. decreases with increase difference. It also found evolution grows linearly in beginning. indicates forced term resonates
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