bounding max k, epsilon and omega values

matejmuller · October 24, 2015, 11:20

Hi!

Is there a way to bound the maximal k, epsilon and omega values in openfoam without recompiling a new solver (due to my lack in programming knowledge)? I would think openfoam has this already built-in as it is a common thing to do (perhaps one can define it in a dictionary like RASProperties or fvSchemes?).

Thanks,
Matej

alexeym · October 24, 2015, 13:22

Hi,

Take a look at User Guide - 4.4.1.1 Schemes for strictly bounded scalar fields, http://cfd.direct/openfoam/user-guid...20-1080004.4.1.

Unfortunately in RASProperties you can set only lower limit for k, epsilon, and omega.

Also you can try (though you have mentioned lack of programming skills) to use temperatureLimitConstraint fvOption as a base for turbulentFieldsLimitConstraint fvOption.

October 24, 2015, 11:20	bounding max k, epsilon and omega values	#1
matejmuller New Member Matej Muller Join Date: Oct 2011 Location: Slovenia Posts: 25 Rep Power: 15	Hi! Is there a way to bound the maximal k, epsilon and omega values in openfoam without recompiling a new solver (due to my lack in programming knowledge)? I would think openfoam has this already built-in as it is a common thing to do (perhaps one can define it in a dictionary like RASProperties or fvSchemes?). Thanks, Matej

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October 24, 2015, 13:22		#2
alexeym Senior Member Alexey Matveichev Join Date: Aug 2011 Location: Nancy, France Posts: 1,938 Rep Power: 39	Hi, Take a look at User Guide - 4.4.1.1 Schemes for strictly bounded scalar fields, http://cfd.direct/openfoam/user-guid...20-1080004.4.1. Unfortunately in RASProperties you can set only lower limit for k, epsilon, and omega. Also you can try (though you have mentioned lack of programming skills) to use temperatureLimitConstraint fvOption as a base for turbulentFieldsLimitConstraint fvOption.