ME330_S07_HWSet5A - ME 330 Fluid Mechanics Spring 2007...

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Unformatted text preview: ME 330 Fluid Mechanics Spring 2007 Department of Engineering Western Kentucky University CHAPTER 5A HW - Homework Solutions Problem #s 5-2C, 5-5C, 5-9E and 5-10, Due February 16, 2007 5-2C Solution We are to discuss mass and volume flow rates and their relationship. Analysis Mass flow rate is the amount of mass flowing through a cross-section per unit time whereas volume flow rate is the amount of volume flowing through a cross- section per unit time . Discussion Mass flow rate has dimensions of mass/time while volume flow rate has dimensions of volume/time. 5-5C Solution We are to discuss whether the flow is steady through a given control volume. Analysis No , a flow with the same volume flow rate at the inlet and the exit is not necessarily steady (unless the density is constant). To be steady, the mass flow rate through the device must remain constant. Discussion If the question had stated that the two mass flow rates were equal, then the answer would be yes ....
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This homework help was uploaded on 04/19/2008 for the course ME 330 taught by Professor An during the Spring '08 term at Western Kentucky University.

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ME330_S07_HWSet5A - ME 330 Fluid Mechanics Spring 2007...

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