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Fluid Mecanics : Force on a Y pipe

  1. Oct 7, 2009 #1
    Hi,
    I have a problem with the momentum equation in fluid mecanics. Here is my probleme.
    I have a Y pipe which is horizontal. The inlet velocity is Va, section A, mass flow Qa, and pressure Pa. The pipe is deviding in two sections B and C. I know Vb,Vc section B and C, mass flow at B and C and the pressure Pb and Pc. The angle between the horizonthal section and the other is theta
    I want to have the force applied on the pipe. If I apply the momentum equation i will have :
    sum Fx=rhoQ delta(Vx)
    sum Fy=rhoQ delta(Vy).
    What is the strategie for a Y pipe? With a simple pipe we would have:
    PaVa-PbVb-Fx=rhoQ(Vb-Va) but for a Y pipe i don't know.
    Can someone help me?

    Sorry for my poo English my native laguage is French.
    Thanks
    Loic
     
  2. jcsd
  3. Oct 7, 2009 #2
    You can apply the same principles to a Y pipe that you can to a strait or bent pipe. The only difference will be the direction of the flows. So for a Y pipe, your velocities at the exit will be vectors with both an x and a y component.
     
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