Wave interaction in a nonequilibrium gas flow |
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Authors: | VD Sharma Gopala Krishna Srinivasan |
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Institution: | Department of Mathematics, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India |
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Abstract: | By employing the method of multiple time scales, we derive here the transport equations for the primary amplitudes of resonantly interacting high-frequency waves propagating into a non-equilibrium gas flow. Evolutionary behavior of non-resonant wave modes culminating into shocks or no shocks, together with their asymptotic decay behavior, is studied. Effects of non-linearity, which are noticeable over times of order O(ε-1), are examined, and the model evolution equations for resonantly interacting multi-wave modes are derived. |
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Keywords: | Wave interaction Nonequilibrium gas flows Shock waves |
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