Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. lumberjack_jeff

    "Fluid flow control with transformational media"

    lumberjack_jeff, Aug 12, 2011
    Replies:
    1
    Views:
    1,917
    philSweet
    Aug 14, 2011
  2. revintage

    "Number of points" in JavaFoil

    revintage, Dec 2, 2018
    Replies:
    0
    Views:
    1,476
    revintage
    Dec 2, 2018
  3. Doug Lord

    "Point" Foils

    Doug Lord, Jul 12, 2016
    Replies:
    4
    Views:
    1,888
    Doug Lord
    Jul 12, 2016
  4. BlueBell

    "Quarter Horse" Designer Interview

    BlueBell, Mar 12, 2024
    Replies:
    0
    Views:
    391
    BlueBell
    Mar 12, 2024
  5. mar.ste

    "Simple" hydrofoil addition to a laser II

    mar.ste, Sep 3, 2016 ... 2
    Replies:
    18
    Views:
    8,725
    David Cooper
    Oct 9, 2016
  6. misanthropicexplore

    (Stupid) Pointy Scow

    misanthropicexplore, Apr 10, 2018
    Replies:
    4
    Views:
    1,573
    alan craig
    Apr 21, 2018
  7. Ben G

    12ft skiff dinghy centreboard discussion

    Ben G, May 1, 2014 ... 2 3 4
    Replies:
    54
    Views:
    18,922
    Sergej725
    Oct 25, 2014
  8. Beaufortboat

    20 Bertram Resto

    Beaufortboat, May 24, 2018
    Replies:
    0
    Views:
    997
    Beaufortboat
    May 24, 2018
  9. JohnCanoe

    23 SeaCraft Pocket Drive IB

    JohnCanoe, May 8, 2019
    Replies:
    3
    Views:
    1,343
    Mr Efficiency
    May 8, 2019
  10. Leo Lazauskas

    26th ITTC - Final Reports

    Leo Lazauskas, Oct 23, 2012
    Replies:
    3
    Views:
    2,003
    Ad Hoc
    Oct 24, 2012
  11. Leo Lazauskas

    27th ITTC Reports Available

    Leo Lazauskas, Sep 3, 2014 ... 2
    Replies:
    16
    Views:
    4,440
    Leo Lazauskas
    Sep 25, 2014
  12. shilohseymour

    321 Hamilton rocks getting stuck in nozzle

    shilohseymour, Aug 5, 2017
    Replies:
    0
    Views:
    1,196
    shilohseymour
    Aug 5, 2017
  13. Leo Lazauskas

    50 Common Errors in Powering Predictions

    Leo Lazauskas, May 13, 2011 ... 2
    Replies:
    17
    Views:
    5,883
    DMacPherson
    Jun 2, 2011
  14. Doug Lord

    5th High Performance Yacht Design Conference

    Doug Lord, Mar 9, 2015
    Replies:
    5
    Views:
    2,179
    Erwan
    Mar 13, 2015
  15. Manfred.pech

    A new approach with foils ?

    Manfred.pech, Jul 4, 2015
    Replies:
    3
    Views:
    2,232
    Manfred.pech
    Jul 6, 2015
  16. daiquiri

    A note of caution about technical papers (example included)

    daiquiri, Jun 4, 2012 ... 2
    Replies:
    27
    Views:
    3,895
    BeppeZena
    Jun 15, 2012
  17. nzl51

    A question of planform - Replacement Trimaran Centreboard

    nzl51, Apr 30, 2021
    Replies:
    5
    Views:
    1,889
    Steve Clark
    May 12, 2021
  18. Sailor Al

    A sail is not a wing

    Sailor Al, Feb 7, 2021 ... 11 12 13
    Replies:
    183
    Views:
    14,160
    Howlandwoodworks
    Feb 26, 2021
  19. quequen

    About Claes Johnson

    quequen, Feb 11, 2014
    Replies:
    2
    Views:
    3,549
    quequen
    Feb 12, 2014
  20. fredschmidt

    About inclined underwater hull form

    fredschmidt, Feb 18, 2012 ... 10 11 12
    Replies:
    173
    Views:
    52,816
    rowboat70
    Dec 14, 2013
  21. Mikko Brummer

    About the induced drag of sails

    Mikko Brummer, May 18, 2020 ... 4 5 6
    Replies:
    81
    Views:
    15,579
    Pablo Sopelana
    Jun 3, 2021
  22. Alan Cattelliot

    AC75 : How to get rid of the additionnal parasitic drag when foiling ?

    Alan Cattelliot, Mar 22, 2023 ... 4 5 6
    Replies:
    75
    Views:
    7,124
    Alan Cattelliot
    Apr 27, 2023
  23. LongCruise

    Active Drag Reduction?

    LongCruise, Mar 15, 2021 ... 2
    Replies:
    27
    Views:
    7,207
    BMcF
    Jan 28, 2022
  24. waterbear

    Added drag of external chine logs

    waterbear, Dec 14, 2019
    Replies:
    3
    Views:
    2,290
    messabout
    Feb 2, 2020
  25. Erwan

    Added Resistance & Power Increase in Waves

    Erwan, Oct 27, 2012 ... 2
    Replies:
    16
    Views:
    4,947
    Leo Lazauskas
    Dec 30, 2012
  26. PHQ

    Added Resistance in Wave

    PHQ, Jun 30, 2013
    Replies:
    12
    Views:
    4,084
    Pablo Sopelana
    May 17, 2021
  27. quequen

    Added Resistance in Waves

    quequen, Jan 30, 2014 ... 2
    Replies:
    29
    Views:
    10,066
    Pablo Sopelana
    Jan 14, 2022
  28. Boy Griffioen

    Addition of a Figaro III foil to a mini 650

    Boy Griffioen, Sep 9, 2017
    Replies:
    1
    Views:
    1,262
    mojounwin
    Oct 24, 2017
  29. 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:
    1,593
    rxcomposite
    Nov 12, 2020
  30. laukejas

    Advanced questions regarding CoE - CLR balance of small boats

    laukejas, Sep 6, 2017 ... 2 3
    Replies:
    40
    Views:
    8,620
    Ben G
    Dec 13, 2017
  31. W9GFO

    Advantages of hard chined, human powered, stabilized monohull, over round bottom?

    W9GFO, Aug 10, 2018 ... 2
    Replies:
    23
    Views:
    3,595
    BlueBell
    Aug 12, 2018
  32. Doug Lord

    Advantages/ Disadvantages of Curved Lifting Foils on Monohulls/Multihulls

    Doug Lord, Apr 6, 2011 ... 2 3
    Replies:
    43
    Views:
    23,882
    Doug Lord
    Oct 23, 2011
  33. Vincent DePilli

    Aero benefits of a straight forestay

    Vincent DePilli, Apr 24, 2013 ... 2 3
    Replies:
    40
    Views:
    6,547
    viking north
    May 22, 2013
  34. craphy

    Aero Hydrodynamics And The Performance Of Sailing Yachts

    craphy, Nov 18, 2016
    Replies:
    1
    Views:
    3,078
    Boat Design Net Moderator
    Nov 18, 2016
  35. Remmlinger

    Aerodynamic Characteristics of 2D Sail sections

    Remmlinger, Feb 16, 2021 ... 2
    Replies:
    15
    Views:
    2,844
    gonzo
    Mar 4, 2021
  36. rww76

    Aerodynamic drag coefficients

    rww76, Jun 15, 2011
    Replies:
    13
    Views:
    14,705
    Ad Hoc
    Aug 8, 2015
  37. farjoe

    Aerodynamic Lift and Drag versus App. Wind Angle

    farjoe, Nov 14, 2014
    Replies:
    5
    Views:
    2,741
    jehardiman
    Nov 16, 2014
  38. Roflhat

    Aerodynamics - thundercat racing inflatable

    Roflhat, Oct 13, 2015 ... 4 5 6
    Replies:
    89
    Views:
    33,574
    Anders
    Jun 9, 2020
  39. Dhutch

    Aerodynamics - Trailers?

    Dhutch, Aug 14, 2012 ... 2 3 4
    Replies:
    46
    Views:
    11,832
    LP
    Oct 2, 2012
  40. Revboat

    Aerodynamics of 'overlapped' staysails

    Revboat, Jun 23, 2021 ... 2
    Replies:
    28
    Views:
    5,994
    brian eiland
    Oct 19, 2023
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