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Problem Applying Boundary Conditions

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Old   July 9, 2014, 02:27
Post Problem Applying Boundary Conditions
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I have a complicated engine coolant closed loop system. I am interested in performing CFD analysis. I have explained in a simple schematic diagram in attached PDF. With full closed loop system data available it would be very straightforward to apply boundary condition.
Schematic_Diag_Problem.pdf

Can I still maintain the same boundary condition for the new configuration as maintained for the old configuration?

Boundary condition for the old figuration are determined experimentally.

Old configuration: Pipe diameter 9mm & 9mm.
New configuration: Pipe diameter 12mm & 9mm.
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