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Pumping power calculation for jet impingment flows

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Old   December 28, 2013, 01:16
Default Pumping power calculation for jet impingment flows
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Prasanth Kumar
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Hi everyone,

I am working on jet impingement cooling of heat sources. I found Avg Nu for all heat sources and now i want to calculate pumping power (= velocity * Pressure drop) to find optimum performance (high Nu and low pumping power). But i found negative pressure at the inlet (Because high pressure at stagnation point). Please help me out in calculation of pressure drop.

Thanks in advance.
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