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-   -   Boundary distribution of velocities (http://www.cfd-online.com/Forums/flow-3d/80693-boundary-distribution-velocities.html)

Davahue October 4, 2010 07:10

Boundary distribution of velocities
 
Hello,
I need to perform a distribution of velocities along one boundary,
could anybody help me please?
Thanks!

MuxaB October 4, 2010 21:09

Quote:

Originally Posted by Davahue (Post 277654)
Hello,
I need to perform a distribution of velocities along one boundary,
could anybody help me please?
Thanks!

You can either customize the code (BC.F file for boundary conditions) or do the following trick. Run a model to get the desired velocity distribution at a location, then do a restart calculation, setting the inlet boundary at that location and using the Grid Overlay (GO) type boundary there. It will then use the velocity distribution from the first run as the boundary condition for the second, interpolating the solution onto the new grid. It is a steady-state bc though.

ck5285 October 4, 2010 23:33

Quote:

Originally Posted by MuxaB (Post 277786)
You can either customize the code (BC.F file for boundary conditions) or do the following trick. Run a model to get the desired velocity distribution at a location, then do a restart calculation, setting the inlet boundary at that location and using the Grid Overlay (GO) type boundary there. It will then use the velocity distribution from the first run as the boundary condition for the second, interpolating the solution onto the new grid. It is a steady-state bc though.

Hi MuxaB,
can you share on the step by step or any references document to customize this BC>F file for boundary conditions?

MuxaB October 6, 2010 12:07

Chapter 9 of the Manual has all the details, including, I think, an example of a customization of the BC routine.

Davahue October 6, 2010 18:48

Thanks MuxaB,
it seems clear enough!

XU wei May 8, 2011 05:58

Quote:

Originally Posted by MuxaB (Post 278126)
Chapter 9 of the Manual has all the details, including, I think, an example of a customization of the BC routine.

Hello MuxaB,
Could you send me the manual of version 9.3. My e-mail:xuwei2011@whu.edu.cn
Thanks!

thaiduong June 27, 2011 10:37

Hello MuxaB and colledgues,

Could you please send me a PDF copy of User Manual Flow 3d V9.3 to me, it is very important to me, and I am dying with the simulation cos i do not have this one. I just use the online help to learn step by step.
I am very grateful to your kindness. Please it is very urgent to me, because I am doing my master thesis to this.

My email address is: vuhoangthaiduong@iwer.vn

All my regards.
Duong

MuxaB June 27, 2011 19:47

Quote:

Originally Posted by XU wei (Post 306663)
Hello MuxaB,
Could you send me the manual of version 9.3. My e-mail:xuwei2011@whu.edu.cn
Thanks!

Isn't there an on-line version available with the installation?

Michael

thaiduong June 27, 2011 21:15

Oh, there is help version online.
 
Quote:

Originally Posted by MuxaB (Post 313800)
Isn't there an on-line version available with the installation?

Michael

Dear Michael,

I am sorry that there is no version of manual for me, only a Help online in the program, so could you please send me a pdf version of this or the chapter 9 of this Manual only.

Thank you very much.
Duong

MuxaB June 29, 2011 20:17

Quote:

Originally Posted by thaiduong (Post 313812)
Dear Michael,

I am sorry that there is no version of manual for me, only a Help online in the program, so could you please send me a pdf version of this or the chapter 9 of this Manual only.

Thank you very much.
Duong

Duong,

Is online Help no good? In any case, you can order a printed version of the whole manual for around $20 from the user site, for which you should have access as a licensed user.


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