Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. dina

    boats that are designed with car aerodynamic method?

    dina, Oct 5, 2012 ... 15 16 17
    Replies:
    244
    Views:
    40,508
    Erwan
    Sep 10, 2023
  2. seandepagnier

    sheeting angle for best drive with roller furling.

    seandepagnier, Aug 2, 2023
    Replies:
    5
    Views:
    1,336
    Blueknarr
    Aug 7, 2023
  3. Orey10m

    calculating Minimum thrust needed against current

    Orey10m, Aug 7, 2023
    Replies:
    5
    Views:
    1,169
    Barry
    Aug 7, 2023
  4. rwatson
    Locked

    Swimming Curved Object - powered by the water flow

    rwatson, Jul 12, 2023 ... 2
    Replies:
    15
    Views:
    2,554
    Boat Design Net Moderator
    Aug 4, 2023
  5. IngLaTorre

    Doubts about Maxsurf and the Modeling (Motion Analysis) of a Boathouse.

    IngLaTorre, Jul 23, 2023
    Replies:
    11
    Views:
    1,435
    IngLaTorre
    Jul 25, 2023
  6. Cow Cocky

    Rudder counter balance

    Cow Cocky, Jul 23, 2023
    Replies:
    11
    Views:
    1,366
    jehardiman
    Jul 24, 2023
  7. mtumut

    Prandtl Tank - Smallest towing tank

    mtumut, Oct 26, 2016
    Replies:
    5
    Views:
    3,078
    Robbo62
    Jul 21, 2023
  8. 67-LS1

    Increasing planing speed for a (fiberglass) Lyman Biscayne

    67-LS1, Jul 17, 2023
    Replies:
    14
    Views:
    1,808
    67-LS1
    Jul 20, 2023
  9. CatMonoceros

    Keel Spillplate?

    CatMonoceros, Jul 15, 2023
    Replies:
    9
    Views:
    1,193
    wet feet
    Jul 17, 2023
  10. B.NARENDHIRAN

    Does Cl and Cd values of an airfoil change with steady and transient simulation?

    B.NARENDHIRAN, Jul 12, 2023
    Replies:
    3
    Views:
    1,147
    baeckmo
    Jul 12, 2023
  11. nrbt

    trim, draft calculation for counter ballast calculator

    nrbt, Jul 5, 2023
    Replies:
    3
    Views:
    1,357
    Ad Hoc
    Jul 5, 2023
  12. Squidly-Diddly

    explain the very rough surface of Gators and Crocs, hydrodynamically

    Squidly-Diddly, Jun 19, 2023 ... 2
    Replies:
    15
    Views:
    2,494
    Squidly-Diddly
    Jun 30, 2023
  13. Solario

    Thrust greater than drag

    Solario, May 18, 2023 ... 6 7 8
    Replies:
    110
    Views:
    9,942
    Solario
    Jun 23, 2023
  14. MalSmith

    Yet another analogy for lift

    MalSmith, May 15, 2023
    Replies:
    14
    Views:
    1,583
    DogCavalry
    May 26, 2023
  15. Iridian

    Forward Swept Daggerboards?

    Iridian, Jun 22, 2021
    Replies:
    10
    Views:
    2,815
    Paul Scott
    May 2, 2023
  16. dustman

    Wing sail questions

    dustman, Jan 3, 2023 ... 2
    Replies:
    25
    Views:
    3,979
    dustman
    May 1, 2023
  17. Alan Cattelliot

    How often do you use of CFD (Computational Fluid Dynamics) ?

    Alan Cattelliot, Feb 14, 2023 ... 3 4 5
    Replies:
    61
    Views:
    7,012
    Alan Cattelliot
    Apr 27, 2023
  18. 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:
    7,194
    Alan Cattelliot
    Apr 27, 2023
  19. Remmlinger

    Prandtl's lifting-line method for sails

    Remmlinger, Feb 21, 2023 ... 2 3 4
    Replies:
    45
    Views:
    6,058
    Jack Cecil
    Apr 12, 2023
  20. fallguy

    Modifyng the beaching keel

    fallguy, Apr 5, 2023
    Replies:
    13
    Views:
    1,378
    Milehog
    Apr 7, 2023
  21. lunatic

    Need analysis of rowing experiments reducing blade area while maintaining performance

    lunatic, Jan 12, 2023 ... 2
    Replies:
    15
    Views:
    2,576
    Alan Cattelliot
    Apr 4, 2023
  22. mitch184

    Quantifying Drag of Rocker

    mitch184, Mar 10, 2023
    Replies:
    9
    Views:
    1,308
    mitch184
    Mar 14, 2023
  23. Sailor Al

    What hold galaxies together?

    Sailor Al, Aug 3, 2022 ... 9 10 11
    Replies:
    161
    Views:
    12,233
    Paul Scott
    Mar 8, 2023
  24. hashtag_laeuft

    Foil section design using xflr5

    hashtag_laeuft, Jan 26, 2023 ... 2
    Replies:
    20
    Views:
    3,116
    Erwan
    Feb 7, 2023
  25. Lynton Banks

    Lifting strakes do they produce lift in the submerged sections

    Lynton Banks, Jan 27, 2023 ... 2
    Replies:
    26
    Views:
    3,633
    Lynton Banks
    Feb 5, 2023
  26. Joe Cruise

    Ballast issue

    Joe Cruise, Feb 1, 2023
    Replies:
    5
    Views:
    1,127
    fallguy
    Feb 3, 2023
  27. rwatson

    Flettner Rotors - Calculating Rotating Skin Friction

    rwatson, Jun 16, 2018 ... 2 3
    Replies:
    39
    Views:
    10,821
    rwatson
    Jan 28, 2023
  28. James T

    Looking for a mesh file of an open geometry

    James T, Jan 26, 2023
    Replies:
    0
    Views:
    913
    James T
    Jan 26, 2023
  29. dustman

    Stalling behaviors of foils based on aspect ratio or chord?

    dustman, Jan 7, 2023 ... 2 3 4
    Replies:
    54
    Views:
    5,027
    DCockey
    Jan 15, 2023
  30. serdar

    Daggerboard Design for a Dinghy

    serdar, Jan 3, 2023 ... 2
    Replies:
    18
    Views:
    2,105
    serdar
    Jan 11, 2023
  31. JoshTruman

    Vertical shear forces and vertical bending moments in regular waves

    JoshTruman, Jan 1, 2023
    Replies:
    8
    Views:
    1,159
    jehardiman
    Jan 5, 2023
  32. Sailor Al

    Was Marchaj having us on?

    Sailor Al, Apr 12, 2021 ... 14 15 16
    Replies:
    235
    Views:
    22,447
    gonzo
    Jan 5, 2023
  33. JoshTruman

    The analytical calculation of ship bending moments in regular waves

    JoshTruman, Jan 2, 2023
    Replies:
    0
    Views:
    868
    JoshTruman
    Jan 2, 2023
  34. Alan Cattelliot

    What do you think of adding a meteo section in this forum ?

    Alan Cattelliot, Dec 18, 2022
    Replies:
    2
    Views:
    911
    Alan Cattelliot
    Dec 18, 2022
  35. MicMac

    Maximum Efficiency of a turbine on a moving vessel

    MicMac, Nov 16, 2022 ... 2
    Replies:
    25
    Views:
    2,483
    seandepagnier
    Dec 17, 2022
  36. zstine

    Wave Resistance on Submarine vs Surface

    zstine, Jun 17, 2022 ... 2
    Replies:
    22
    Views:
    4,005
    jehardiman
    Dec 17, 2022
  37. sun

    How to analyze the impact of waves with different wavelengths, wave heights and encounter angles on

    sun, Dec 15, 2022
    Replies:
    5
    Views:
    1,087
    sun
    Dec 17, 2022
  38. maughanjamesr@gmail. com

    Do these measurements of drag for my canoes make sense?

    maughanjamesr@gmail. com, Oct 8, 2022
    Replies:
    10
    Views:
    2,088
    Paul Scott
    Dec 14, 2022
  39. Alexanov

    Perforated plate or net in CFD modeling. Question to cfd experts.

    Alexanov, Dec 11, 2022
    Replies:
    2
    Views:
    914
    Alexanov
    Dec 11, 2022
  40. tropostudio

    Wave Tank Question

    tropostudio, Nov 16, 2021 ... 2 3
    Replies:
    30
    Views:
    5,483
    tropostudio
    Dec 7, 2022
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