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Old   October 9, 2016, 08:46
Question dynamic mesh simulation
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Aseel
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i have been doing dynamic mesh simulation for in cylinder flow using ansys fluent , however during the set up ,i couldn't' set up the time step size . it seems it is automatically set up by the ANSYS and i couldn't change the number . any body help set up the time step size please?

you can see it clear in the picture down.

thank you
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Old   October 13, 2016, 14:51
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Quote:
Originally Posted by Ad.Al.Qads View Post
i have been doing dynamic mesh simulation for in cylinder flow using ansys fluent , however during the set up ,i couldn't' set up the time step size . it seems it is automatically set up by the ANSYS and i couldn't change the number . any body help set up the time step size please?

you can see it clear in the picture down.

thank you
why you need dynamic mesh for flow over cylinder ?
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Old   October 13, 2016, 16:03
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actually i am doing cold flow simulation for direct injection engine. however i have encounter many problems in creating the flow domain for my geometry. and currently i am suing ICE Engine for simulation and i got problems in my geometry such as creating the flow domain as well as selecting the valve seat face as u can see.

could u please help me in that?
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Old   October 14, 2016, 05:41
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Quote:
Originally Posted by Ad.Al.Qads View Post
actually i am doing cold flow simulation for direct injection engine. however i have encounter many problems in creating the flow domain for my geometry. and currently i am suing ICE Engine for simulation and i got problems in my geometry such as creating the flow domain as well as selecting the valve seat face as u can see.

could u please help me in that?
i didn't do something like that but you can do it with fluent instead of ICE engine.

and about fixed step time, did you simulation unsteady problem ?
i suggest do once according to tutorial for reducing probable problems.
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