shock wave in water
Does anybody have any experience with simulating water as an compressible liquid in fluent? I have already written an udf file for relation between density and pressure. But since I want to use the explicit solver (because Fluent help says that this solver is better for capturing shock), when I use it I get this error:
"global time stepping cannot be used for incompressible flow"
however I have changed the material to water and the density and speed of sound to udf. I think this should be enough for fluent to realize that I am solving compressible flow.
Anybody has any idea how to get rid of this error?
Make sure you are using the explicit density based solver (regardless of how you use UDFs to take care of everything else).
Thanks for your reply. I use explicit solver (density-based) with a udf for water density. But still have the same error. it seems fluent cannot realize the udf. I guess the only EOS fluent supports with explicit solver is "Ideal gas".
has anybody simulated water as compressible with explicit solver?
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