### Author Topic: moving wall problem  (Read 14378 times)

#### moloy_kb

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##### moving wall problem
« on: August 24, 2012, 08:31:49 AM »
Dear all,
I want to simulate the flow through a pipe in Fluent whose wall is moving in sinusoidal manner along normal direction. Please help me in this regard. I am also attaching the geometry of the problem.

#### william

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##### Re: moving wall problem
« Reply #1 on: August 24, 2012, 09:12:13 AM »
See the tutorial in the PDF attached. You will need to make a UDF for this purpose as well.

#### namankothari

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##### Re: moving wall problem
« Reply #2 on: September 29, 2012, 11:35:28 AM »
Hi William,

I have also been trying to simulate a similar problem as the case in the PDF file which you have uploaded. However, I am having problems in getting the UDF right for the example. Can you please post the code for the UDF as a reference for the case? It would be very helpful.

#### ilker199

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##### Re: moving wall problem
« Reply #3 on: October 05, 2012, 12:40:45 PM »
Dear William;

I am trying to solve a similar problem and I have problems with the UDF file. Can you send me the UDF code too. My e-mail adress is "ivuruskan@gmail.com".

Thanks a lot

#### dorona

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##### Re: moving wall problem
« Reply #4 on: November 09, 2012, 02:35:04 PM »
hello guys
I am new to fluent so please be gentle with me

I am also trying to simulate moving objects in a chamber. It is hard for me to understand UDFs (was looking around the internet for a while without finding REAL tutorial).
Can i define a moving wall without UDF? a practical (even very simple one ) example might be very helpful

thanks a lot

Doron

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##### Re: moving wall problem
« Reply #5 on: November 09, 2012, 02:53:56 PM »
hello guys
I am new to fluent so please be gentle with me

I am also trying to simulate moving objects in a chamber. It is hard for me to understand UDFs (was looking around the internet for a while without finding REAL tutorial).
Can i define a moving wall without UDF? a practical (even very simple one ) example might be very helpful

thanks a lot

Doron