Accessing neighbouring nodes values

Tushar_Telmasre · May 10, 2017, 14:26

Dear Friends,

Is there any macro or variable to access the neighbouring node data. like _M1 will give you value at previous time step.

I need temperature data at neighbouring nodes to calculate gradient.

Can anybody comment?

kirmaks · May 12, 2017, 05:16

Hallo,

I think it's easier to set the expert parameter to store the temporary variable values and the FLUENT will make the work for You. You can use C_T_G(c,t)[0..2] directly then.

There is an example for UDS gradient in help: https://www.sharcnet.ca/Software/Flu...udf/node96.htm

Best regards, Maks

Tushar_Telmasre · May 12, 2017, 07:48

Thanks a lot.

That did solve the gradient problem.

May 10, 2017, 14:26	Accessing neighbouring nodes values	#1
Tushar_Telmasre Member sebastian bergman Join Date: Mar 2017 Location: seattle Posts: 52 Rep Power: 9	Dear Friends, Is there any macro or variable to access the neighbouring node data. like _M1 will give you value at previous time step. I need temperature data at neighbouring nodes to calculate gradient. Can anybody comment?

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May 12, 2017, 05:16		#2
kirmaks Member KirMaks Join Date: Aug 2016 Posts: 34 Rep Power: 10	Hallo, I think it's easier to set the expert parameter to store the temporary variable values and the FLUENT will make the work for You. You can use C_T_G(c,t)[0..2] directly then. There is an example for UDS gradient in help: https://www.sharcnet.ca/Software/Flu...udf/node96.htm Best regards, Maks

May 12, 2017, 07:48		#3
Tushar_Telmasre Member sebastian bergman Join Date: Mar 2017 Location: seattle Posts: 52 Rep Power: 9	Thanks a lot. That did solve the gradient problem.