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Francis turbin difference between experiment values and CFD 2

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Old   January 7, 2010, 02:48
Default Francis turbin difference between experiment values and CFD 2
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snoopy
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Hello

I asked about this problem before but I can't solve the problem yet.

I have flow rate 1.37 m^3/s at outlet from an experiment.
I imposed initial conditions as 4.16ATM pressure at inlet but after CFX 11 runned I got a result 2 m^3/s at outlet.
As I told you, I have to have result as 1.37 m^3/s at outlet.
What should I do?
I already checked modeling, scale and fluid properties and so on.

The problem is that there is more flow rate at outlet in cfx than real experiment value.
In my opnion, there is less frictional loss in cfx than real flow?
Do you have any idea for this problem?

Thank you in advance.

Have a nice day.

PS : I attaced outfile. Plelase help me.
Attached Files
File Type: txt outfile_cfx.txt (58.6 KB, 9 views)
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