Circumferential axial average for 3-D Pipe

AnthonyBowers · August 24, 2020, 10:38

Hello,

I am in serious need of guidance or help. I've been working on trying to obtain the cross-sectional area average along the axial distance of the 3-D pipe. My variables of interest are Interfacial-|Area-Concentration, Volume fraction and Mass fraction.. etc. I used CFD-Post and heard of a way to record an action. However, the coding is beyond my capability. Please aid me in my research and understanding of CFD.

Thanks

AtoHM · August 25, 2020, 02:18

I am afraid you will have to script that on your own. Allow yourself some time to test and figure out how the scripting works, it will benefit your future work in CFD, I promise.

Normally you would go and create a state, in your case with a plane. You better save it as state file, you might want to reuse it later. Then how to get the values: I think there are several ways, I once did something similar with a table. As you will need to script from here on, you start recording a session. Once recording is on, create the table and put your values you desire in there, preferably in the first row. Once you have the values, go back to the viewer and shift your plane by the step size you desire. Stop recording.

Now all you need to do is to figure out how a loop works and just write values to the table -> shift plane -> next step -> repeat.

Good luck.

AnthonyBowers · August 25, 2020, 07:14

Do you know of any documentation source for CFD-post syntax?

August 24, 2020, 10:38	Circumferential axial average for 3-D Pipe	#1
AnthonyBowers New Member AnthonyBowers Join Date: Jun 2020 Posts: 13 Rep Power: 5	Hello, I am in serious need of guidance or help. I've been working on trying to obtain the cross-sectional area average along the axial distance of the 3-D pipe. My variables of interest are Interfacial-\|Area-Concentration, Volume fraction and Mass fraction.. etc. I used CFD-Post and heard of a way to record an action. However, the coding is beyond my capability. Please aid me in my research and understanding of CFD. Thanks

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August 25, 2020, 02:18		#2
AtoHM Senior Member M Join Date: Dec 2017 Posts: 642 Rep Power: 12	I am afraid you will have to script that on your own. Allow yourself some time to test and figure out how the scripting works, it will benefit your future work in CFD, I promise. Normally you would go and create a state, in your case with a plane. You better save it as state file, you might want to reuse it later. Then how to get the values: I think there are several ways, I once did something similar with a table. As you will need to script from here on, you start recording a session. Once recording is on, create the table and put your values you desire in there, preferably in the first row. Once you have the values, go back to the viewer and shift your plane by the step size you desire. Stop recording. Now all you need to do is to figure out how a loop works and just write values to the table -> shift plane -> next step -> repeat. Good luck.

August 25, 2020, 07:14		#3
AnthonyBowers New Member AnthonyBowers Join Date: Jun 2020 Posts: 13 Rep Power: 5	Do you know of any documentation source for CFD-post syntax?