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Homework Help: Force exerted by the fluid

  1. Feb 24, 2010 #1
    1. The problem statement, all variables and given/known data

    Find the direction of the force exerted by the fluid to the airfoil.

    2. Relevant equations


    3. The attempt at a solution

    I think that's the forces direction (x is horizontal and z is vertical) for 2 cases. In case I am dealing with either the compressor or turbine, will the solutions change?

    I know that:
    -If case 1 is designed for the compressor, it will move downward and if case 1 is designed for the turbine, it will move upward.
    -If case 2 is designed for the compressor, it will move upward and if case 2 is designed for the turbine, it will move downward.

    I am guessing my directions (forces exerted by the fluid on the airfoil/blade) stay the same.

    Are my directions right in those 2 cases? Thank you.

    Attached Files:

  2. jcsd
  3. Feb 24, 2010 #2
    the first case is right i think but i didn't understand the second case completely the given figures are not clear
  4. Feb 24, 2010 #3
    It's exactly the same except the pressure side and suction side reversed. I'd guess that the z direction has to change but then I am not so sure that first case is even right.
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