Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. 23feet

    When does the low aspect foil shine?

    23feet, Dec 3, 2020
    Replies:
    13
    Views:
    3,090
    Eric ruttan
    Dec 23, 2020
  2. dustman

    Higher Cp at higher speeds equates to less resistance?

    dustman, Dec 1, 2020 ... 4 5 6
    Replies:
    78
    Views:
    7,571
    Eric ruttan
    Dec 22, 2020
  3. MoeZ

    Designing Planing Hulls...

    MoeZ, Dec 15, 2020
    Replies:
    0
    Views:
    1,643
    MoeZ
    Dec 15, 2020
  4. Bornyesterday

    Never Seen This Before

    Bornyesterday, Nov 27, 2020
    Replies:
    9
    Views:
    1,850
    Bornyesterday
    Dec 8, 2020
  5. Surfer Naval Architect

    Stream lines of a container ship

    Surfer Naval Architect, Nov 19, 2020
    Replies:
    4
    Views:
    1,566
    Mr Efficiency
    Nov 21, 2020
  6. Chaos

    Keel trailing edge Hunter 26.5

    Chaos, Jul 23, 2020
    Replies:
    4
    Views:
    2,039
    Chaos
    Nov 19, 2020
  7. Surfer Naval Architect

    Proper regression to calculate the power prediction for a Catamaran

    Surfer Naval Architect, Nov 19, 2020
    Replies:
    1
    Views:
    1,141
    Alik
    Nov 19, 2020
  8. Surfer Naval Architect

    Additional resistance due to wave of 1.2 m height for a boat with a Froude 0.6

    Surfer Naval Architect, Nov 11, 2020
    Replies:
    4
    Views:
    1,592
    rxcomposite
    Nov 12, 2020
  9. Pierre Talbot

    Translate Newton to kwh

    Pierre Talbot, Nov 9, 2020
    Replies:
    3
    Views:
    1,108
    fredrosse
    Nov 12, 2020
  10. Dave_S

    Foils...Long cord length V's wide wingspan ?

    Dave_S, Oct 26, 2020
    Replies:
    3
    Views:
    1,919
    CocoonCruisers
    Nov 9, 2020
  11. Doug Halsey

    Foil Cavitation at Lower Speeds Than Expected

    Doug Halsey, Aug 11, 2015 ... 9 10 11
    Replies:
    154
    Views:
    22,843
    tspeer
    Oct 26, 2020
  12. Dave_S

    T Rudder designs for cruising catamarans

    Dave_S, Oct 19, 2020
    Replies:
    7
    Views:
    2,181
    patzefran
    Oct 21, 2020
  13. Inquisitor

    Hopped-Up Winnebago

    Inquisitor, Sep 21, 2020
    Replies:
    11
    Views:
    2,085
    Inquisitor
    Oct 18, 2020
  14. WildCard

    Rudder blade design - problem

    WildCard, Apr 16, 2020 ... 2
    Replies:
    20
    Views:
    6,311
    jehardiman
    Oct 17, 2020
  15. Chaos

    trailing edge

    Chaos, Sep 27, 2020 ... 2
    Replies:
    17
    Views:
    3,380
    Chaos
    Oct 15, 2020
  16. vaer

    Resistance Prediction with statistical methods

    vaer, Aug 1, 2018
    Replies:
    13
    Views:
    4,967
    Mitch1990
    Oct 13, 2020
  17. Mitch1990

    Manoeuvring Assessment

    Mitch1990, Oct 12, 2020
    Replies:
    0
    Views:
    798
    Mitch1990
    Oct 12, 2020
  18. Inquisitor

    Wings on Cruising Catamarans

    Inquisitor, Sep 18, 2020
    Replies:
    5
    Views:
    5,484
    PeteK
    Oct 8, 2020
  19. Kim Klaka

    curious rudder balance problem

    Kim Klaka, Feb 20, 2017 ... 2
    Replies:
    25
    Views:
    6,305
    PeteK
    Oct 7, 2020
  20. Ribber

    On a planning V-Bottom powerboat are chines below the waterline actually useful?

    Ribber, Sep 16, 2020 ... 2
    Replies:
    15
    Views:
    3,699
    Mr Efficiency
    Sep 17, 2020
  21. ARQNAV

    POWERSEA still working?

    ARQNAV, Sep 14, 2020
    Replies:
    2
    Views:
    1,322
    ARQNAV
    Sep 14, 2020
  22. dustman

    Gap between luff and mast, effect on efficiency?

    dustman, Aug 29, 2020
    Replies:
    6
    Views:
    2,097
    dustman
    Sep 1, 2020
  23. Greg Woulfe

    Shark Cat - Removing the wave-breaker? To do or not to do?

    Greg Woulfe, Aug 3, 2020
    Replies:
    7
    Views:
    3,459
    Greg Woulfe
    Aug 3, 2020
  24. Brian Needham

    Archeological question

    Brian Needham, Feb 10, 2020 ... 2
    Replies:
    21
    Views:
    4,542
    mitchgrunes
    Jul 29, 2020
  25. Dr34m3r

    X-Bow Hull from Ulstein

    Dr34m3r, Mar 2, 2020
    Replies:
    7
    Views:
    4,776
    Ad Hoc
    Jul 25, 2020
  26. myszek

    Wave-making drag for asymmetrical hulls

    myszek, Jul 21, 2020
    Replies:
    5
    Views:
    1,930
    myszek
    Jul 24, 2020
  27. mitchgrunes

    How much less efficient would a planing hull sea kayak be?

    mitchgrunes, Jul 11, 2020 ... 2 3
    Replies:
    30
    Views:
    7,027
    mitchgrunes
    Jul 23, 2020
  28. revintage

    Merging H105

    revintage, Jul 17, 2020
    Replies:
    3
    Views:
    1,970
    revintage
    Jul 19, 2020
  29. rturbett

    Pivoting centerboard- Daggerboard position

    rturbett, Jul 4, 2020
    Replies:
    4
    Views:
    1,919
    messabout
    Jul 15, 2020
  30. Philip

    Experimental Split Sail Design

    Philip, Jul 7, 2020 ... 2
    Replies:
    22
    Views:
    3,037
    Philip
    Jul 13, 2020
  31. Peter Marcellus Epe

    Learning CFD

    Peter Marcellus Epe, Jul 5, 2020
    Replies:
    9
    Views:
    1,958
    jehardiman
    Jul 8, 2020
  32. Rich Cope

    Corbin 39 MkI

    Rich Cope, Jun 5, 2019
    Replies:
    9
    Views:
    4,032
    petit bateau
    Jun 27, 2020
  33. anuprdk

    Stern wave - reduction in wave making resistance

    anuprdk, Jun 25, 2020
    Replies:
    3
    Views:
    1,921
    jehardiman
    Jun 25, 2020
  34. jjj

    Water jet active stabilizers

    jjj, May 20, 2020 ... 2
    Replies:
    16
    Views:
    3,230
    BMcF
    Jun 25, 2020
  35. container

    Bell shaped lift distribution

    container, May 19, 2020 ... 2
    Replies:
    29
    Views:
    5,897
    Jean Baptiste
    Jun 25, 2020
  36. Leif Weisner

    Flotation pod angle

    Leif Weisner, Jun 18, 2020
    Replies:
    2
    Views:
    2,918
    philSweet
    Jun 18, 2020
  37. ImaginaryNumber

    Turbulence research

    ImaginaryNumber, Feb 29, 2020
    Replies:
    10
    Views:
    1,826
    Dejay
    Jun 12, 2020
  38. Peaky

    Drag Angles vs VPP

    Peaky, May 21, 2020 ... 2
    Replies:
    24
    Views:
    3,813
    MikeDrummond
    Jun 11, 2020
  39. Alexanov

    Ships lengthening

    Alexanov, Jun 6, 2020
    Replies:
    10
    Views:
    2,106
    Alexanov
    Jun 11, 2020
  40. Roflhat

    Aerodynamics - thundercat racing inflatable

    Roflhat, Oct 13, 2015 ... 4 5 6
    Replies:
    89
    Views:
    33,567
    Anders
    Jun 9, 2020
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