How did I output discharge data ?

Andy Chen · May 24, 2009, 12:10

Dear Flow-3d expert :

I simulated a channel in flow-3d. I want to see discharge data at the last cross-section. How did I set in flow-3d ?

I can see the mesh depended history data of right, left, front, and back boundary fluid 1 volume flow rate in '' Analize->Probe->Mesh depended history->Text(Graphical) "'. Were that discharge data? I am confused .

Thanks your help, regards.

Ghirghidov · May 25, 2009, 03:24

Flow rate is another name. :-)

Andy Chen · May 25, 2009, 08:40

Thanks for Ghirghidov.
So you mean that volume flow rate is not discharge data, didn't it ?

Ghirghidov · May 25, 2009, 09:18

I mean volume flow rate is discharge data for border.

Andy Chen · May 25, 2009, 14:46

Ok, I see.

Then, do you know how can I output discharge data at last cross-section ?

Because, governing equations don't have "flow rate term".

I have an idea that output velocity data. Then velocity multiply to mesh area that is volume flow rate. How did you think ?

Ghirghidov · May 26, 2009, 04:35

If the boundary volume flow rate is not enough you are right (IMHO you have to exclude solid parts from the mesh area but sometimes it's quite difficult)

May 24, 2009, 12:10	How did I output discharge data ?	#1
Andy Chen Member Yi-Lang Chen Join Date: May 2009 Posts: 58 Rep Power: 17	Dear Flow-3d expert : I simulated a channel in flow-3d. I want to see discharge data at the last cross-section. How did I set in flow-3d ? I can see the mesh depended history data of right, left, front, and back boundary fluid 1 volume flow rate in '' Analize->Probe->Mesh depended history->Text(Graphical) "'. Were that discharge data? I am confused . Thanks your help, regards.

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May 25, 2009, 03:24		#2
Ghirghidov Member Armen A. Ghirghidov Join Date: Mar 2009 Posts: 50 Rep Power: 17	Flow rate is another name. :-)

May 25, 2009, 08:40		#3
Andy Chen Member Yi-Lang Chen Join Date: May 2009 Posts: 58 Rep Power: 17	Thanks for Ghirghidov. So you mean that volume flow rate is not discharge data, didn't it ?

May 25, 2009, 09:18		#4
Ghirghidov Member Armen A. Ghirghidov Join Date: Mar 2009 Posts: 50 Rep Power: 17	I mean volume flow rate is discharge data for border.

May 25, 2009, 14:46		#5
Andy Chen Member Yi-Lang Chen Join Date: May 2009 Posts: 58 Rep Power: 17	Ok, I see. Then, do you know how can I output discharge data at last cross-section ? Because, governing equations don't have "flow rate term". I have an idea that output velocity data. Then velocity multiply to mesh area that is volume flow rate. How did you think ?

May 26, 2009, 04:35		#6
Ghirghidov Member Armen A. Ghirghidov Join Date: Mar 2009 Posts: 50 Rep Power: 17	If the boundary volume flow rate is not enough you are right (IMHO you have to exclude solid parts from the mesh area but sometimes it's quite difficult)