How to access temp. of adjacent two cell centre

sat_fire · February 15, 2018, 07:14

hi everyone,

I have to find temp gradient dT/dy, for that i have to get temperature of two adjacent cell center.first adjacent cell center data can be access by using C_T(c0,t0) but how to access next cell center temp.please help me ...

pakk · February 15, 2018, 09:51

Why don't you just use the built-in temperature gradient?

Search in the help for "Gradient (G) and Reconstruction Gradient (RG) Vector Macros".

annan · February 16, 2018, 05:03

Hello sat_fire,

You can access the next cells temperature using C_T(c1,t1) if you are in the interior of your domain. This link can help : https://www.sharcnet.ca/Software/Flu...udf/node92.htm

If you want the gradient without calculating it in each cell, then you can use the macros C_T_G or C_T_RG as suggested by pakk.

Hope this will help.
Good luck

February 15, 2018, 09:51		#2
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 27	Why don't you just use the built-in temperature gradient? Search in the help for "Gradient (G) and Reconstruction Gradient (RG) Vector Macros". sat_fire likes this.

February 16, 2018, 05:03		#3
annan Member annan Join Date: Nov 2016 Posts: 72 Rep Power: 10	Hello sat_fire, You can access the next cells temperature using C_T(c1,t1) if you are in the interior of your domain. This link can help : https://www.sharcnet.ca/Software/Flu...udf/node92.htm If you want the gradient without calculating it in each cell, then you can use the macros C_T_G or C_T_RG as suggested by pakk. Hope this will help. Good luck sat_fire likes this.

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