How to calculate the pressures produced by a prop in a tube?

Discussion in 'Propulsion' started by RipSlider, Jul 28, 2008.

  1. RipSlider
    Joined: Jul 2008
    Posts: 6
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Yorkshire, UK

    RipSlider Junior Member

    Hello all.

    A quick question, but one that I suspect will have a long answer.

    I am thinking of building something like a fixed Kort nozzle to go around a prop. However, I am not sure of the pressures that the tube making up the nozzle will be exposed to.

    Obviously an amount of water - x - which would have travelled outwards will now hit the kort nozzle and head directly sternwards instead. But I am not sure how to calculate how much pressure that nozzle will be subjected to.

    I'm guessing that water volume, rpm and twist on the blades will play a factor, but I can't find the equations.

    Any help greatfully recieved

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