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-   -   Urgent! forced conection. (https://www.cfd-online.com/Forums/fluent/45548-urgent-forced-conection.html)

amir July 29, 2007 12:56

Urgent! forced conection.
 
Hi all i face whit a problem that it really confused me! i split a face whit an edge and so create 2 zone, one of those is solid and another one is fluid(air) i assign vilocity_inlet to left edge of fluid zone and outflow to right. indeed flow air cross over the solid. i active energy equation and use unsteady condition and K-e. i want to see its cooling after several minutes. but after 20secs i couldn't see any changing in solid zone. i can see thermal boundary layer over solid wall but seem that air can not cool the solid i hope it be enough explanation ,.please tell me : why solid's temperature is constant? k=100 initial temp of solid:500k(i patch solid zone on 500k) velocity inlet :10m/s-300k Whit king regrds Amir


ritmat July 30, 2007 04:00

Re: Urgent! forced conection.
 
be sure that your faces at interface are connected, so that you can use coupled for boundary conditions

red lemon July 30, 2007 16:19

Re: Urgent! forced conection.
 
yes otherwise the solid zone will not the the fluid zone and vice versa. They must either share nodes or use a non conformal interface.

amir July 31, 2007 06:15

Re: Urgent! forced conection.
 
Dear red lemon and ritmat i take your advices,but i dont see any changing. Best Amir


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