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Another Fluid Mechanics problem

  1. Oct 6, 2006 #1
    I'm having problem understanding this one, can clarify and help answer?

    A material region is defined as one where the surface velocity W is everywhere equal to the fluid velocity V. Such a region always contains the same fluid. Is it possible to define W in a less restrictive way and still have a region always containing the same material?

  2. jcsd
  3. Oct 6, 2006 #2


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    Staff: Mentor

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