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time step incompressible flow

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Old   October 31, 2006, 09:10
Default time step incompressible flow
Nicolas CAPRON
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I want compute an unsteady incompressible flow expluctly. I gave the courant number but you obtain this message :

"You cannot use global time stepping to compute unsteady incompressible flows"

How to run?

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Old   October 31, 2006, 10:26
Default Re: time step incompressible flow
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In "unsteady formulation", you must choice "1st order implicit" or "2nd order implicit"
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Old   May 17, 2013, 16:47
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Marcin K
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I have a similar problem.

I'm doing a transient, compressible (UDF for density and speed of sound), FSI problem with the use of system coupling. I would like to simulate a pressure wave hitting an object, but i get the same error as the topic creator, even thou my fluid is

Will implicit time formulation, for the explicit density-based solver simulate properly the above mentioned phenomena?

thanks in advance for any help
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Old   October 7, 2015, 06:36
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Stephan Jäger
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did anyone get rid of this error? I got the same one although I want to simulate an unsteady compressible case!
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