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flow properties
Posted 25 giu 2012, 09:31 GMT-4 Fluid & Heat, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.2a 0 Replies
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I simulate the flow of ideal gas through a channel with changing crss section using the High Mach Number Flow Model.
In the Inlet settings I have to specify the total temperautre, the total pressure and the Mach number.
In the Initial Values settings I have to specify again the temperature, the pressure and the velocity field.
So I wonder why I have to specify the Mach Number AND the velodity field. The Mach number should be Ma= u/a (a=sonic speed). So why does Comsol need both? How does it calculate the velocity field at the end? I can't find the formulas in the guide.
Hello Tilmann John
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