Need Help on Heat Flux Profile within Pipe Wall

mep10jl · April 27, 2011, 18:59

Hi,

I am modelling heat transfer across a pipe, and I have meshed both the fluid in the pipe and the pipe wall

In my modelling, i need to specifiy that there is constant heat flux at the outer surface of the pipe wall, but this heat flux will reduce as it penetrate into the wall

the problem is heat flux is constant at x-direction, but expontentially decrease in radial direction. Furthermore, I also have written a UDF to define the profile of heat generation for source term in solid zone, but I get error message to say "FLUENT received fatal signal (ACCESS_VIOLATION)"

It will be greatly thankful if anyone can advice me how to write such heat flux profile in radial direction

mep10jl · April 28, 2011, 15:32

any1 have any idea regarding to this?

mep10jl · May 16, 2011, 15:33

can any1 give me some advice on this issue?

mep10jl · June 6, 2011, 18:08

can any1 give me some advice on this issue?

April 27, 2011, 18:59	Need Help on Heat Flux Profile within Pipe Wall	#1
mep10jl New Member Jun Join Date: Nov 2010 Posts: 8 Rep Power: 16	Hi, I am modelling heat transfer across a pipe, and I have meshed both the fluid in the pipe and the pipe wall In my modelling, i need to specifiy that there is constant heat flux at the outer surface of the pipe wall, but this heat flux will reduce as it penetrate into the wall the problem is heat flux is constant at x-direction, but expontentially decrease in radial direction. Furthermore, I also have written a UDF to define the profile of heat generation for source term in solid zone, but I get error message to say "FLUENT received fatal signal (ACCESS_VIOLATION)" It will be greatly thankful if anyone can advice me how to write such heat flux profile in radial direction

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April 28, 2011, 15:32		#2
mep10jl New Member Jun Join Date: Nov 2010 Posts: 8 Rep Power: 16	any1 have any idea regarding to this?

May 16, 2011, 15:33		#3
mep10jl New Member Jun Join Date: Nov 2010 Posts: 8 Rep Power: 16	can any1 give me some advice on this issue?

June 6, 2011, 18:08		#4
mep10jl New Member Jun Join Date: Nov 2010 Posts: 8 Rep Power: 16	can any1 give me some advice on this issue?