unsteady vs steady

newminde · January 31, 2013, 02:24

Hay everyone, I have a question related to staedy and unsteady flow.
Firstly: I have done a model with similar parametres and calculated until solution converged. I got different answers.
When is useful to use unsteady flow?(or steady)

RodriguezFatz · January 31, 2013, 05:42

You set the solver to "unsteady" and the solution converges? Then, your flow is not unsteady. If this is the case, you should get the same results, whether you set it to "steady" or "unsteady". Sounds like you did something wrong.
Post some pictures of your setup.

January 31, 2013, 02:24	unsteady vs steady	#1
newminde New Member Mindaugas Join Date: Jun 2012 Posts: 25 Rep Power: 15	Hay everyone, I have a question related to staedy and unsteady flow. Firstly: I have done a model with similar parametres and calculated until solution converged. I got different answers. When is useful to use unsteady flow?(or steady)

January 31, 2013, 05:42		#2
RodriguezFatz Senior Member Philipp Join Date: Jun 2011 Location: Germany Posts: 1,297 Rep Power: 28	You set the solver to "unsteady" and the solution converges? Then, your flow is not unsteady. If this is the case, you should get the same results, whether you set it to "steady" or "unsteady". Sounds like you did something wrong. Post some pictures of your setup. __________________ The skeleton ran out of shampoo in the shower.

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