# Density Ratio

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 August 20, 2005, 06:16 Density Ratio #1 Compressibility Guest   Posts: n/a hello, in a high speed compressible flow where there may be shocks forming, what size density ratios might i get? would these density ratios be bigger than i would get in a low speed combustion system? thanks

 August 20, 2005, 17:29 Re: Density Ratio #2 Jim_Park Guest   Posts: n/a Get an aerodynamcis or fluids book from your library, go to the supersonic chapters, and find some of the simple flows that can be solved analytically - with your electronic calculator (or slide rule). Put some numbers in and calculate the density ratio (also pressure and temperature ratios) across a shock. And you can calculate the shock location. Now you have your answer - and the first test case for your code!

 August 21, 2005, 17:24 Re: Density Ratio #3 Compressibility Guest   Posts: n/a your answer is not overly helpful for a beginner in the subject ...

 August 21, 2005, 18:27 Re: Density Ratio #4 Ahmed Guest   Posts: n/a I disagree with you, Jim Park gave you the most correct answer, do your home work and learn the basics

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