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Old   July 9, 2008, 19:33
Default convection heat transfer
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kamal
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Hi all! i have problem in convective heat transfer.my cylinder wall tempreture is at 25 degree and fluid inside the cylinder is at 5 degree.this is unsteady state problem.i plot the graph for Average tempreture of the fluid Vs Time in the fluent.Now i need to plot the same graph by changing the different value of the thermal conductivity of the fluid. Can anyone help me in this problem??
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Old   July 13, 2008, 12:25
Default Re: convection heat transfer
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Micael
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You can write a journal that change conductivity then iterate to solution then write (appends) the average temperature in a file. You can repeat these 3 steps in your journal as many time as you want just by copy-past the lines (just do a long repetitive journal) but with new conductivity.

In order to write the journal, I suggest you to start doing the 3 steps using the TUI in order to find out what the commands should be. Once you can do it with the TUI, it's exactly the sames commands for the journal.
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Old   July 13, 2008, 12:32
Default Re: convection heat transfer
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Micael
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You want to have many Temperature vs time profil? (with different conductivity)? In that case, I think it's best to write each profil in a different file (one file for each profil). Just use a diffent name for the file in the journal for each repetition of the 3 steps.
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Old   July 13, 2008, 13:57
Default Re: convection heat transfer
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kamal
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hi micael! thanks for ur reply..u r taking about which journal..can u specify the procedure in detail plz....thanks again for ur help

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