{"id":157758,"date":"2020-12-12T23:00:06","date_gmt":"2020-12-12T23:00:06","guid":{"rendered":"\/forum\/forums\/topic\/source-term-in-fluent-2\/"},"modified":"2020-12-14T11:59:35","modified_gmt":"2020-12-14T11:59:35","slug":"source-term-in-fluent-2","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/source-term-in-fluent-2\/","title":{"rendered":"SOURCE TERM IN FLUENT !"},"content":{"rendered":"
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HI , I HAVE A GREAT PROBLEM WHEN I HOOK AN SOURCE TERM I HAVE FOUND THE DIFFERENT RESULTS SPECIALLY WHEN I RUN TOW CALCULATION HAVE SAME STRICTURE EXP : POISSON EQUATION USING "UDS" VS HEAT EQUATION USING ENERGY EQUATION IN FLUENT USING SIMPLE ALGORITHM I FOUND THE FOLLOWING RESULTS :<\/p>\n

1 \/WHEN I RUN EQUATION WITH INTERPRETED SOURCE TERM FOR ENERGY GIVE REASONABLE RESULT<\/p>\n

2 \/WHEN I RUN EQUATION WITH INTERPRETED SOURCE TERM FOR ENERGY GIVE HUGE VALUES<\/p>\n

THE UDF ARE :<\/p>\n

DEFINE_SOURCE(ENERGY_SOURCE, c, thread, dS, eqn)<\/p>\n

{<\/p>\n

Domain *d = Get_Domain(1);<\/p>\n

int fluid_ID = **;<\/p>\n

Thread *t_fluid = Lookup_Thread (d,fluid_ID);<\/p>\n

Source = C_T(c,t_fluid);<\/p>\n

dS[eqn]=1;<\/p>\n

return Source;<\/p>\n

}<\/p>\n

DEFINE_SOURCE(POISSON_SOURCE, c, thread, dS, eqn)<\/p>\n

{<\/p>\n

Domain *d = Get_Domain(1);<\/p>\n

int fluid_ID = **;<\/p>\n

Thread *t_fluid = Lookup_Thread (d,fluid_ID);<\/p>\n

Source = C_UDSI(c,t_fluid,0);<\/p>\n

dS[eqn]=1;<\/p>\n

return Source;<\/p>\n

}<\/p>\n

PLEASE HELP !<\/p>\n","protected":false},"template":"","class_list":["post-157758","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t