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February 26, 2004, 07:16 |
Free shear flow instabilty
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#1 |
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I want to solve the Rayleigh eq. about inviscid free shear flow in the spatial instabiltiy. All references I have are about the temporal stability solution. How can I solve the spatial stability Rayleigh eq. ?? Same method with temporal stability ? (Only change of the unknowns) If you know the references or method, please let me know.
Thanks in advance. Best regards. |
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February 26, 2004, 10:42 |
Re: Free shear flow instabilty
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#2 |
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I thought that the Kelvin Helmholtz instability describes shear flows. And the Rayleigh inviscid criterion describes a circulation gradient condition for rotating flows to go unstable.
What is Rayleighs inviscid free shear instability? |
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February 27, 2004, 04:47 |
Re: Free shear flow instabilty
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#3 |
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It's just a change of unknowns as you state; i.e. fix the frequency and treat the wavenumber as the unknown.
Look at Drazin & Reid Hydrodynamic stability and, if you can find a copy, the book by C.C. Lin, Tom. |
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