Paddle wheel thrust

Discussion in 'Propulsion' started by JosephT, Mar 11, 2013.

  1. JosephT
    Joined: Jun 2009
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    Location: Roaring Forties

    JosephT Senior Member

    Is there any analysis software available to measure paddle wheel thrust?Variables:
    -Size paddles
    -Number of paddles
    -Axis rotation speed
    Result = total thrust/flow (if using flow meter)
    Thanks :)
     
  2. jehardiman
    Joined: Aug 2004
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    Location: Port Orchard, Washington, USA

    jehardiman Senior Member

    1 person likes this.
  3. daiquiri
    Joined: May 2004
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    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

    Wasn't there a discussion about paddle wheels design on this forum, a couple of yrs ago? With good reference papers from some german authors, if I recall it correctly...
     
  4. daiquiri
    Joined: May 2004
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    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

  5. JosephT
    Joined: Jun 2009
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    Location: Roaring Forties

    JosephT Senior Member

    Thanks for that additional info Daiquiri. It's nice to see a hand-written resource like that.

    There is a bit of renewed interest in historical riverboats over the winter as low water conditions on the US Mississippi & Missouri Rivers have allowed archeologists & historians to examine sunken boats. In most cases the main planks are quite well preserved. These are all older boats from the steam power era. Below is an example.

    http://kplr11.com/2012/08/17/pictures-drought-reveals-sunken-steam-ship/

    Compared to today's boats, these steam boats were quite dangerous. The steam engines could explode and catch the whole boat on fire. Or, as in this case, they could run aground.

    I'm sure ocean going steamers had their share of problems too.

    Thanks again,

    Joe
     

  6. fredrosse
    Joined: Jan 2005
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    Location: Philadelphia PA

    fredrosse USACE Steam

    I have some software for paddle propulsion, having built a sidewheeler a few years ago, and fluid dynamics is a large part of my day job. Now in the process of building articulated wheels for the steamer this spring, these arrangements can provide propulsion efficiency that is close to that which is available for screw propellers.
     
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