udf and setup with move wall -- CFD Online Discussion Forums

July 3, 2018, 09:06

udf and setup with move wall

freeze

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Join Date: May 2018

Location: Taiwan,Hsinchu city

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HI!
I do a simulation in fluent, it similar this video https://www.youtube.com/watch?v=kZ_iXXIAJis

i have some question, first, i don't know how to let inlet and outlet wall open and close with interval time, second, i let the inlet wall open, the cylinder will be longer with inlet wall, air can't into the piston like video,i don't know how to setup

attached file is my model and udf

THANKS

Attached Images

	123.PNG (24.3 KB, 5 views)
	3.PNG (8.3 KB, 6 views)

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