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how nozzle's inlet flow speed change in an ocean situation

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Old   July 27, 2009, 11:03
Default how nozzle's inlet flow speed change in an ocean situation
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I got the difficulty to understand how flow's speed change in nozzle's inlet when it is in ocean tidal situation.
For example, if tidal free stream velocity is 5m/s, and nozzle inlet diameter is 10cm, will the inlet velocity decrease? that's my calculation result but I cannot explain why. Is there any one here can help me to understand it?
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Old   August 3, 2009, 15:41
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could you please elaborate on the setup, such as the location of the nozzle and the direction of flow, etc? thanks.
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