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September 12, 2020, 11:50 |
multiphase cell and face temperature
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#1 |
New Member
SAJA AL-RIFAI
Join Date: Feb 2020
Posts: 11
Rep Power: 6 |
hello,
I wrote a UDF to calculate face and cell temperature and use it to adjust some of the values using the Adjust function. In my case I have mixture of gases including the water vapor (phase 1) and water liquid (phase 2). My UDF should loop over the phase 1 to calculate condensation of water vapor on a solid wall using a specific functions. however, the problem is the cell temperature and face temperature is very high and I have very low condensation, when I go to Ansys results and calculate the surface temperature (average, maximum, and minimum) on the same wall, I got a very satisfied results and within the range of what I need to condensate the water vapor compared to the one calculated by the UDF. is the UDF calculate the temperature of the water vapor at that wall and its shadow? part of my UDF code (this part inside the adjust function): : : .... mp_thread_loop_f(tf, mixture_domain, pt) if (DOMAIN_ID(tf) == 2) /*ID for mixture of gas phase 1*/ { begin_f_loop(f,tf) { tc = THREAD_T0(tf); c = F_C0(f,tf); pt = THREAD_SUB_THREADS(tc); ti = pt[0]; cell_temp = C_T(c,ti); /*very high compared to the wall temperature wall */ wall_temp = F_T(f,tf); /*same very high*/ } ..... : : |
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