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Flow around a sphere

  1. Feb 21, 2005 #1
    For a sphere moving through an incompressible fluid, what is the condition for cavitation to occur?
     
  2. jcsd
  3. Feb 21, 2005 #2
    Well--this is a bit more complex than it may seem--you are dealing with a lot of different variables ---like viscosity/density/delta pressure/------perhaps a google search under "Sphere+cavitation" would help. Try that--and I will look also.

    Photongod
     
  4. Feb 21, 2005 #3
    Maybe there is some sort of simplified answer for it? The question is suppoesed to be a relatively short one....
     
  5. Feb 22, 2005 #4

    FredGarvin

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    Science Advisor

    Cavitation will happen when the pressure at any point drops below the fliud's vapor pressure. This can happen around a sphere if there is sufficient enough flow separation happens behind the sphere, creating an adverse pressure gradient.
     
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