CFD software options for Hull Resistance curves

Discussion in 'Software' started by ram68ocean, Aug 22, 2021.

  1. Dolfiman
    Joined: Aug 2017
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    Location: France

    Dolfiman Senior Member

    This thesis with proposed regression formulations in clear and with their coefficients (which is rare) can be helpful :" Re-evaluation of resistance prediction for high-speed round bilge hull forms" by Jae Won, Florida institute of technology , based on old to recent experiments :
    • NPL (1969)

    • S-NPL (1994)

    • SKLAD (1972-1980) and

    • AMERC (1984-2000)
    Not yet used myself but seems very good and well documented at first glance :
    https://repository.lib.fit.edu/bitstream/handle/11141/783/Won, Jae, Re-evaluation of resistance ....pdf?sequence=1&isAllowed=y
     
    DCockey and ram68ocean like this.
  2. ram68ocean
    Joined: Mar 2013
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    ram68ocean Junior Member

    Here are some Resistance and Power curves for different methods I got using Maxsurf.
    Holtrop and Fung give similar results. I am planning to use these results as a starting point.
    Bare Hull Resistance in calm water at 8 knots = 3.1 kilo Newtons
    Power in calm water at 8 knots (50% efficiency) = 26 kilo Watts
     

    Attached Files:

  3. Ad Hoc
    Joined: Oct 2008
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    Ad Hoc Naval Architect

    Have you decided not to read the Bailey series; which is more appropriate?
     

  4. ram68ocean
    Joined: Mar 2013
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    Location: Europe

    ram68ocean Junior Member

    They give the same result for 8 knots (NPL Bailey and Holtrop)! I am really impressed with the outcome.
     
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