Transition route of Klebanoff type in hypersonic boundary layers


Min Yu;Jisheng Luo;Xuesong Wu;


<正>The present study is concerned with identifying dominant nonlinear modal interactions causing rapid amplification of threedimensional disturbances in hypersonic transition.We carried out direct numerical simulations(DNS) of the nonlinear development of a time-harmonic but spanwise localized disturbance.The result indicates that spectral components close to a preferred finite spanwise wavenumber acquire large amplitudes,and correspondingly


DNS;Transition route of Klebanoff type in hypersonic boundary layers;mode;


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