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Entropy wave

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Old   January 14, 2009, 13:19
Default Entropy wave
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Dennis
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Hello,

I'm writing a student thesis on CFD at the moment. Could someone please explain me why the first root of the characteristic form of the linear Euler-equations,

W = rho - p / c^2

is called "entropy wave".

Thanks
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Old   January 26, 2009, 21:27
Default Re: Entropy wave
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NRD
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In my understanding it is because the speed of sound is based on the definition of change in pressure w.r.t. change in density at constant entropy
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