Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. Alan Cattelliot

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

    Alan Cattelliot, Mar 22, 2023 at 2:38 AM
    Replies:
    4
    Views:
    94
    Alan Cattelliot
    Mar 22, 2023 at 1:48 PM
  2. Remmlinger

    Prandtl's lifting-line method for sails

    Remmlinger, Feb 21, 2023 ... 2 3
    Replies:
    42
    Views:
    2,070
    Mikko Brummer
    Mar 21, 2023 at 9:47 AM
  3. mitch184

    Quantifying Drag of Rocker

    mitch184, Mar 10, 2023
    Replies:
    9
    Views:
    340
    mitch184
    Mar 14, 2023
  4. lunatic

    Need analysis of rowing experiments reducing blade area while maintaining performance

    lunatic, Jan 12, 2023
    Replies:
    11
    Views:
    703
    Alan Cattelliot
    Mar 11, 2023
  5. Sailor Al

    What hold galaxies together?

    Sailor Al, Aug 3, 2022 ... 9 10 11
    Replies:
    161
    Views:
    7,632
    Paul Scott
    Mar 8, 2023
  6. dustman

    Wing sail questions

    dustman, Jan 3, 2023 ... 2
    Replies:
    22
    Views:
    1,536
    Alan Cattelliot
    Mar 5, 2023
  7. ToMy

    Semi-displacement boats don't generate lift??

    ToMy, Feb 28, 2023
    Replies:
    4
    Views:
    369
    Paul Scott
    Feb 28, 2023
  8. Alan Cattelliot

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

    Alan Cattelliot, Feb 14, 2023 ... 2 3 4
    Replies:
    54
    Views:
    2,409
    Alan Cattelliot
    Feb 21, 2023
  9. Mikko Brummer

    Is circulation real?

    Mikko Brummer, Jan 25, 2013 ... 46 47 48
    Replies:
    716
    Views:
    55,499
    Sailor Al
    Feb 11, 2023
  10. hashtag_laeuft

    Foil section design using xflr5

    hashtag_laeuft, Jan 26, 2023 ... 2
    Replies:
    20
    Views:
    1,288
    Erwan
    Feb 7, 2023
  11. Lynton Banks

    Lifting strakes do they produce lift in the submerged sections

    Lynton Banks, Jan 27, 2023 ... 2
    Replies:
    26
    Views:
    1,284
    Lynton Banks
    Feb 5, 2023
  12. Joe Cruise

    Ballast issue

    Joe Cruise, Feb 1, 2023
    Replies:
    5
    Views:
    464
    fallguy
    Feb 3, 2023
  13. rwatson

    Flettner Rotors - Calculating Rotating Skin Friction

    rwatson, Jun 16, 2018 ... 2 3
    Replies:
    39
    Views:
    8,504
    rwatson
    Jan 28, 2023
  14. James T

    Looking for a mesh file of an open geometry

    James T, Jan 26, 2023
    Replies:
    0
    Views:
    297
    James T
    Jan 26, 2023
  15. skaraborgcraft

    Bow half angle of entrance

    skaraborgcraft, Jan 11, 2023 ... 2
    Replies:
    29
    Views:
    1,029
    skaraborgcraft
    Jan 20, 2023
  16. Sailor Al

    Swept Volume Theory

    Sailor Al, Aug 2, 2022 ... 17 18 19
    Replies:
    271
    Views:
    12,689
    Sailor Al
    Jan 17, 2023
  17. dustman

    Stalling behaviors of foils based on aspect ratio or chord?

    dustman, Jan 7, 2023 ... 2 3 4
    Replies:
    54
    Views:
    2,052
    DCockey
    Jan 15, 2023
  18. serdar

    Daggerboard Design for a Dinghy

    serdar, Jan 3, 2023 ... 2
    Replies:
    18
    Views:
    916
    serdar
    Jan 11, 2023
  19. JoshTruman

    Vertical shear forces and vertical bending moments in regular waves

    JoshTruman, Jan 1, 2023
    Replies:
    8
    Views:
    578
    jehardiman
    Jan 5, 2023
  20. Sailor Al

    Was Marchaj having us on?

    Sailor Al, Apr 12, 2021 ... 14 15 16
    Replies:
    235
    Views:
    16,191
    gonzo
    Jan 5, 2023
  21. JoshTruman

    The analytical calculation of ship bending moments in regular waves

    JoshTruman, Jan 2, 2023
    Replies:
    0
    Views:
    291
    JoshTruman
    Jan 2, 2023
  22. Alan Cattelliot

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

    Alan Cattelliot, Dec 18, 2022
    Replies:
    2
    Views:
    393
    Alan Cattelliot
    Dec 18, 2022
  23. MicMac

    Maximum Efficiency of a turbine on a moving vessel

    MicMac, Nov 16, 2022 ... 2
    Replies:
    25
    Views:
    1,256
    seandepagnier
    Dec 17, 2022
  24. zstine

    Wave Resistance on Submarine vs Surface

    zstine, Jun 17, 2022 ... 2
    Replies:
    22
    Views:
    2,313
    jehardiman
    Dec 17, 2022
  25. sun

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

    sun, Dec 15, 2022
    Replies:
    5
    Views:
    523
    sun
    Dec 17, 2022
  26. maughanjamesr@gmail. com

    Do these measurements of drag for my canoes make sense?

    maughanjamesr@gmail. com, Oct 8, 2022
    Replies:
    10
    Views:
    958
    Paul Scott
    Dec 14, 2022
  27. Alexanov

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

    Alexanov, Dec 11, 2022
    Replies:
    2
    Views:
    400
    Alexanov
    Dec 11, 2022
  28. tropostudio

    Wave Tank Question

    tropostudio, Nov 16, 2021 ... 2 3
    Replies:
    30
    Views:
    3,738
    tropostudio
    Dec 7, 2022
  29. Christian Nally

    On the hydro dynamics of flat bottomed kayaks

    Christian Nally, Oct 4, 2022 ... 2 3 4
    Replies:
    48
    Views:
    3,156
    Paul Scott
    Dec 4, 2022
  30. jbo_c

    Weight effect on trim

    jbo_c, Dec 1, 2022
    Replies:
    2
    Views:
    391
    jbo_c
    Dec 1, 2022
  31. Rounak Saha Niloy

    Height of Superstructure of Passenger Ship

    Rounak Saha Niloy, Nov 17, 2022
    Replies:
    6
    Views:
    545
    RAraujo
    Nov 20, 2022
  32. Guest

    sail aerodynamics

    Guest, Mar 21, 2002 ... 61 62 63
    Replies:
    936
    Views:
    314,765
    BobBill
    Nov 19, 2022
  33. chartman

    Modeling Boat Velocity During Acceleration & Deceleration

    chartman, Mar 16, 2021
    Replies:
    9
    Views:
    1,920
    Alan Cattelliot
    Nov 18, 2022
  34. MacktheYounger

    Foil for current-driven propulsion?

    MacktheYounger, Aug 30, 2022 ... 9 10 11
    Replies:
    155
    Views:
    5,933
    gonzo
    Nov 9, 2022
  35. rubenova

    Interesting rudder shape

    rubenova, Nov 3, 2022
    Replies:
    3
    Views:
    713
    rubenova
    Nov 5, 2022
  36. Elias1999

    Catamaran Wave patterns for froude number 1

    Elias1999, Oct 28, 2022
    Replies:
    5
    Views:
    627
    Ad Hoc
    Oct 30, 2022
  37. Ashwin Gurjar

    Ansys Aqwa error,Non linear catenary cable error

    Ashwin Gurjar, Oct 29, 2022
    Replies:
    0
    Views:
    537
    Ashwin Gurjar
    Oct 29, 2022
  38. seasquirt

    Keel / centreboard aspect differences

    seasquirt, Oct 22, 2022
    Replies:
    8
    Views:
    852
    Tops
    Oct 26, 2022
  39. Slingshot

    Foil section? For foil board

    Slingshot, Dec 24, 2019 ... 2
    Replies:
    21
    Views:
    7,417
    ziper1221
    Oct 23, 2022
  40. jmf11

    Log/attempt for open source CFD / FEM framework for mast/sails simulation

    jmf11, Dec 2, 2021
    Replies:
    11
    Views:
    2,106
    jmf11
    Oct 21, 2022
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