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# p0626 - 6.26 CHAPTER 6 PROBLEM 26 561 6.26 Chapter 6...

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6.26. CHAPTER 6, PROBLEM 26 561 6.26 Chapter 6, Problem 26 Using a control volume that moves with the subway train, the fluid and tunnel walls are at rest. U u . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......................................................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..................................... . . . . . . . . . . . ..... . . . . . . . . . . . . . . ............. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ............ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ......................... . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . ............................ . . . . . . . . . . . . . . . . . . ......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 6.26: Subway train. For the control volume indicated in Figure 6.26, the mass-conservation principle simplifies to d dt 888 V ρ dV + 8 s 8 S ρ u rel · n dS =0 where u rel is the velocity relative to the control-volume velocity. Since the control vol-
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## This note was uploaded on 02/09/2012 for the course AME 309 taught by Professor Phares during the Spring '06 term at USC.

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