1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Compressive Flow Experiment

  1. Jan 14, 2009 #1
    1. The problem statement, all variables and given/known data
    Wondering if anyone could give me a hand, I have created the attached graph. It shows the variations of pressure in the nozzle for different supply pressures and back pressures, in the form, P/Po vs position of the nozzle. and not too sure what its showing


    2. Relevant equations
    Wondering if anyone can help me figure out what the graph is showing??


    3. The attempt at a solution
    [​IMG]
     
  2. jcsd
  3. Jan 14, 2009 #2
    I didn't mention that the nozzle a converging- diverging nozzle. Also I know that at the throat of the nozzle the fluid cannot reach speeds above Mach 1, sonic speeds. However i am wondering where on the graph this relates too.\

    I also know that the Pc/Po(critical pressure ratio) for air is 0.5283 and it seems that as the pressure difference becomes larger the closer the P/Po becomes to the critical ratio value.

    Any help will be greatly appreciated as this has to be submitted by friday.

    Thanks
    John
     
    Last edited: Jan 15, 2009
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?