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How do you identify relevance of compressibility

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Old   September 16, 2020, 07:38
Default How do you identify relevance of compressibility
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Greetings,

How could I compute the velocity of an acoustic wave observed in the divergence field?

I see divergence wavefronts. I wanted to post process results the field to measure the velocity at which they propagate to ensure they are acoustics.
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Old   September 16, 2020, 11:43
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Quote:
Originally Posted by cfd951 View Post
Greetings,

How could I compute the velocity of an acoustic wave observed in the divergence field?

I see divergence wavefronts. I wanted to post process results the field to measure the velocity at which they propagate to ensure they are acoustics.



The sound velocity a is defined by dp/drho|s=const =a^2. Acustic waves moves at the characteristic velocities u+a and u-a.
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