>
> 1. I found that the sound speed was dependent on sqrt(gamma*p/rho). So, 
> Are there any factor that determining the amplitude of pressure or 
> perturbed pressure?
>
 

> 2. When we set a density pulse, the pressure is unchanged with time. When 
> we set  a pressure pulse, the density varies with time.  It is very 
> confusing.
>
    
    3. The PyFR performs well in flow field, but the accuracy in acoustic 
propagation needs further validation as the magnitude of sound pressure is 
much smaller mean flow pressure. 


 

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