Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. Glueandcoffee

    Rc sailrocket

    Glueandcoffee, Feb 9, 2021 ... 2 3 4
    Replies:
    51
    Views:
    6,495
    Glueandcoffee
    Mar 28, 2021
  2. Leo Lazauskas

    SWATH resistance predictions using Michlet

    Leo Lazauskas, Mar 13, 2012 ... 2 3 4
    Replies:
    51
    Views:
    17,099
    hongbohou
    May 2, 2018
  3. kach22i

    Teardrop Ratios - above deck

    kach22i, Jul 8, 2013 ... 2 3 4
    Replies:
    51
    Views:
    13,432
    waikikin
    Aug 28, 2013
  4. DCockey

    Higher Order Panel Method / BEM Current State Overview

    DCockey, Mar 12, 2011 ... 2 3 4
    Replies:
    51
    Views:
    11,282
    Zeeshan Riaz
    Jun 20, 2012
  5. skaraborgcraft

    Bow half angle of entrance

    skaraborgcraft, Jan 11, 2023 ... 2 3 4
    Replies:
    50
    Views:
    5,042
    TeddyDiver
    Feb 24, 2024
  6. oatsandbeans

    Sail camber

    oatsandbeans, Jan 31, 2013 ... 2 3 4
    Replies:
    50
    Views:
    21,473
    Erwan
    Mar 24, 2016
  7. Leo Lazauskas

    Effect of Friction Lines on the Resistance of a Friction Plane

    Leo Lazauskas, Aug 13, 2011 ... 2 3 4
    Replies:
    50
    Views:
    9,947
    DCockey
    Aug 19, 2011
  8. Mikko Brummer

    CFD state of the art

    Mikko Brummer, Dec 17, 2015 ... 2 3 4
    Replies:
    49
    Views:
    13,343
    CocoonCruisers
    Sep 21, 2023
  9. JosephT

    Canoe with square bottom hull vs rounded hull

    JosephT, Feb 11, 2019 ... 2 3 4
    Replies:
    49
    Views:
    12,286
    tlouth7
    May 29, 2019
  10. jesdreamer

    Draft effect on Resistance

    jesdreamer, Dec 6, 2015 ... 2 3 4
    Replies:
    49
    Views:
    11,411
    Ad Hoc
    Oct 1, 2017
  11. DennisRB

    Cat hull resistance change with heel?

    DennisRB, Mar 1, 2016 ... 2 3 4
    Replies:
    49
    Views:
    8,442
    MichaelRoberts
    Apr 15, 2016
  12. DCockey

    Delft Series Resistance Equations - Variety

    DCockey, Aug 4, 2011 ... 2 3 4
    Replies:
    49
    Views:
    19,650
    Mikko Brummer
    Mar 20, 2014
  13. Christian Nally

    On the hydro dynamics of flat bottomed kayaks

    Christian Nally, Oct 4, 2022 ... 2 3 4
    Replies:
    48
    Views:
    5,409
    Paul Scott
    Dec 4, 2022
  14. Anatol

    drag, sail, induced and other.

    Anatol, May 23, 2015 ... 2 3 4
    Replies:
    48
    Views:
    12,454
    tspeer
    Jan 22, 2016
  15. Remmlinger

    Boundary-layer trip

    Remmlinger, Oct 20, 2013 ... 2 3 4
    Replies:
    48
    Views:
    8,523
    Mikko Brummer
    Nov 28, 2013
  16. nimblemotors

    reducing hull friction

    nimblemotors, May 12, 2011 ... 2 3 4
    Replies:
    47
    Views:
    18,860
    DCockey
    Dec 30, 2011
  17. sanantonnio

    Space between mizzen mast and mainsail

    sanantonnio, Dec 7, 2017 ... 2 3 4
    Replies:
    46
    Views:
    7,289
    Gary Baigent
    Feb 5, 2018
  18. Dhutch

    Aerodynamics - Trailers?

    Dhutch, Aug 14, 2012 ... 2 3 4
    Replies:
    46
    Views:
    11,894
    LP
    Oct 2, 2012
  19. Remmlinger

    Prandtl's lifting-line method for sails

    Remmlinger, Feb 21, 2023 ... 2 3 4
    Replies:
    45
    Views:
    6,055
    Jack Cecil
    Apr 12, 2023
  20. seth godin

    Tumblehome and buoyancy in a solo style canadian canoe

    seth godin, Aug 18, 2021 ... 2 3 4
    Replies:
    45
    Views:
    6,320
    fallguy
    Aug 26, 2021
  21. misanthropicexplore

    Sail performance metrics

    misanthropicexplore, Jul 25, 2018 ... 2 3
    Replies:
    44
    Views:
    6,892
    CT249
    Dec 12, 2018
  22. surfbus

    l/b ratios: the longer the better? trimaran float placement?

    surfbus, Dec 4, 2014 ... 2 3
    Replies:
    44
    Views:
    11,388
    surfbus
    Jun 11, 2015
  23. Bostjak

    Power cat unlikely performance?

    Bostjak, Mar 19, 2020 ... 2 3
    Replies:
    43
    Views:
    6,079
    Mcarthur
    May 5, 2020
  24. Olav

    Maximum radius on spray rails

    Olav, Dec 12, 2011 ... 2 3
    Replies:
    43
    Views:
    27,119
    HakimKlunker
    Dec 18, 2011
  25. Doug Lord

    Advantages/ Disadvantages of Curved Lifting Foils on Monohulls/Multihulls

    Doug Lord, Apr 6, 2011 ... 2 3
    Replies:
    43
    Views:
    23,947
    Doug Lord
    Oct 23, 2011
  26. Dabrownone

    Sail Area vs Keel Area - Stability Calculation

    Dabrownone, May 28, 2012 ... 2 3
    Replies:
    42
    Views:
    18,932
    Howlandwoodworks
    Aug 30, 2019
  27. Leo Lazauskas

    The Physical Art of Sailing

    Leo Lazauskas, Nov 24, 2014 ... 2 3
    Replies:
    42
    Views:
    7,346
    CT249
    Dec 27, 2014
  28. Mikko Brummer

    Frisbee-circular plate aerodynamics

    Mikko Brummer, Apr 18, 2012 ... 2 3
    Replies:
    42
    Views:
    13,693
    Mikko Brummer
    May 2, 2012
  29. waNsi

    Pressure Underwater of Ship

    waNsi, Apr 17, 2016 ... 2 3
    Replies:
    41
    Views:
    9,429
    daiquiri
    Apr 21, 2016
  30. Janne Enlund

    Predict flow lines along hull

    Janne Enlund, Mar 28, 2015 ... 2 3
    Replies:
    41
    Views:
    7,080
    Janne Enlund
    Mar 31, 2015
  31. bscally

    Design of flaps on a curved foil.

    bscally, Oct 10, 2011 ... 2 3
    Replies:
    41
    Views:
    10,411
    Erwan
    Sep 19, 2013
  32. lunatic

    tip vortex thrust potential?

    lunatic, Mar 2, 2013 ... 2 3
    Replies:
    41
    Views:
    9,727
    lunatic
    Mar 17, 2013
  33. Sailor Al

    Forces on sailboats (#3)

    Sailor Al, Jun 23, 2021 ... 2 3
    Replies:
    40
    Views:
    6,243
    rangebowdrie
    Sep 24, 2021
  34. Doug Lord

    Foiling Week

    Doug Lord, Jul 10, 2014 ... 2 3
    Replies:
    40
    Views:
    12,048
    Doug Lord
    Feb 14, 2018
  35. TANSL

    Foils for sailing boats

    TANSL, Oct 22, 2017 ... 2 3
    Replies:
    40
    Views:
    7,017
    TANSL
    Feb 8, 2018
  36. laukejas

    Advanced questions regarding CoE - CLR balance of small boats

    laukejas, Sep 6, 2017 ... 2 3
    Replies:
    40
    Views:
    8,659
    Ben G
    Dec 13, 2017
  37. Ev1

    Porpoising

    Ev1, Feb 27, 2017 ... 2 3
    Replies:
    40
    Views:
    10,598
    Mr Efficiency
    Jul 12, 2017
  38. makobuilders

    Placement of chines in multi-chines

    makobuilders, Jul 24, 2016 ... 2 3
    Replies:
    40
    Views:
    6,396
    Barry
    Sep 2, 2016
  39. MichaelRoberts

    Wing mast section, truncated NACA 63015?

    MichaelRoberts, Sep 6, 2015 ... 2 3
    Replies:
    40
    Views:
    13,920
    brian eiland
    Feb 17, 2016
  40. leop

    Is this a Planning, Displacement, or Combination Hull

    leop, Jan 9, 2014 ... 2 3
    Replies:
    40
    Views:
    7,181
    leop
    Jan 23, 2014
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