Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. fallguy

    Modifyng the beaching keel

    fallguy, Apr 5, 2023
    Replies:
    13
    Views:
    1,378
    Milehog
    Apr 7, 2023
  2. 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:
    7,191
    Alan Cattelliot
    Apr 27, 2023
  3. mitch184

    Quantifying Drag of Rocker

    mitch184, Mar 10, 2023
    Replies:
    9
    Views:
    1,308
    mitch184
    Mar 14, 2023
  4. ToMy

    Semi-displacement boats don't generate lift?

    ToMy, Feb 28, 2023 ... 9 10 11
    Replies:
    163
    Views:
    14,960
    patzefran
    Feb 20, 2024
  5. Remmlinger

    Prandtl's lifting-line method for sails

    Remmlinger, Feb 21, 2023 ... 2 3 4
    Replies:
    45
    Views:
    6,056
    Jack Cecil
    Apr 12, 2023
  6. Alan Cattelliot

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

    Alan Cattelliot, Feb 14, 2023 ... 3 4 5
    Replies:
    61
    Views:
    7,010
    Alan Cattelliot
    Apr 27, 2023
  7. Joe Cruise

    Ballast issue

    Joe Cruise, Feb 1, 2023
    Replies:
    5
    Views:
    1,125
    fallguy
    Feb 3, 2023
  8. Lynton Banks

    Lifting strakes do they produce lift in the submerged sections

    Lynton Banks, Jan 27, 2023 ... 2
    Replies:
    26
    Views:
    3,631
    Lynton Banks
    Feb 5, 2023
  9. hashtag_laeuft

    Foil section design using xflr5

    hashtag_laeuft, Jan 26, 2023 ... 2
    Replies:
    20
    Views:
    3,114
    Erwan
    Feb 7, 2023
  10. 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
  11. lunatic

    Need analysis of rowing experiments reducing blade area while maintaining performance

    lunatic, Jan 12, 2023 ... 2
    Replies:
    15
    Views:
    2,575
    Alan Cattelliot
    Apr 4, 2023
  12. skaraborgcraft

    Bow half angle of entrance

    skaraborgcraft, Jan 11, 2023 ... 2 3 4
    Replies:
    50
    Views:
    5,050
    TeddyDiver
    Feb 24, 2024
  13. dustman

    Stalling behaviors of foils based on aspect ratio or chord?

    dustman, Jan 7, 2023 ... 2 3 4
    Replies:
    54
    Views:
    5,025
    DCockey
    Jan 15, 2023
  14. serdar

    Daggerboard Design for a Dinghy

    serdar, Jan 3, 2023 ... 2
    Replies:
    18
    Views:
    2,104
    serdar
    Jan 11, 2023
  15. dustman

    Wing sail questions

    dustman, Jan 3, 2023 ... 2
    Replies:
    25
    Views:
    3,977
    dustman
    May 1, 2023
  16. JoshTruman

    The analytical calculation of ship bending moments in regular waves

    JoshTruman, Jan 2, 2023
    Replies:
    0
    Views:
    868
    JoshTruman
    Jan 2, 2023
  17. JoshTruman

    Vertical shear forces and vertical bending moments in regular waves

    JoshTruman, Jan 1, 2023
    Replies:
    8
    Views:
    1,158
    jehardiman
    Jan 5, 2023
  18. 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
  19. 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
  20. Alexanov

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

    Alexanov, Dec 11, 2022
    Replies:
    2
    Views:
    914
    Alexanov
    Dec 11, 2022
  21. jbo_c

    Weight effect on trim

    jbo_c, Dec 1, 2022
    Replies:
    2
    Views:
    832
    jbo_c
    Dec 1, 2022
  22. Rounak Saha Niloy

    Height of Superstructure of Passenger Ship

    Rounak Saha Niloy, Nov 17, 2022
    Replies:
    6
    Views:
    1,111
    RAraujo
    Nov 20, 2022
  23. MicMac

    Maximum Efficiency of a turbine on a moving vessel

    MicMac, Nov 16, 2022 ... 2
    Replies:
    25
    Views:
    2,482
    seandepagnier
    Dec 17, 2022
  24. rubenova

    Interesting rudder shape

    rubenova, Nov 3, 2022
    Replies:
    3
    Views:
    1,326
    rubenova
    Nov 5, 2022
  25. Ashwin Gurjar

    Ansys Aqwa error,Non linear catenary cable error

    Ashwin Gurjar, Oct 29, 2022
    Replies:
    0
    Views:
    975
    Ashwin Gurjar
    Oct 29, 2022
  26. Elias1999

    Catamaran Wave patterns for froude number 1

    Elias1999, Oct 28, 2022
    Replies:
    5
    Views:
    1,236
    Ad Hoc
    Oct 30, 2022
  27. seasquirt

    Keel / centreboard aspect differences

    seasquirt, Oct 22, 2022
    Replies:
    8
    Views:
    1,774
    Tops
    Oct 26, 2022
  28. Rounak Saha Niloy

    Seakeeping Analysis of Trimaran Hulls

    Rounak Saha Niloy, Oct 19, 2022
    Replies:
    4
    Views:
    1,062
    Alan Cattelliot
    Oct 20, 2022
  29. vaggelis

    Controllable pitch propeller - possible to determine P/D from these data?

    vaggelis, Oct 10, 2022
    Replies:
    0
    Views:
    820
    vaggelis
    Oct 10, 2022
  30. John Rivers

    Cavitation higher than expected at very low speed

    John Rivers, Oct 9, 2022
    Replies:
    3
    Views:
    1,125
    John Rivers
    Oct 11, 2022
  31. 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
  32. 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
  33. S V

    Foil loading limit to avoid cavitation?

    S V, Sep 20, 2022 ... 2
    Replies:
    19
    Views:
    2,937
    S V
    Sep 29, 2022
  34. Windmaster

    Best settings for direct into wind

    Windmaster, Sep 15, 2022
    Replies:
    5
    Views:
    1,077
    Windmaster
    Sep 16, 2022
  35. JerryWo

    rudder design - old sailing vessels

    JerryWo, Sep 1, 2022
    Replies:
    4
    Views:
    1,394
    Flotation
    Sep 1, 2022
  36. MacktheYounger

    Foil for current-driven propulsion?

    MacktheYounger, Aug 30, 2022 ... 9 10 11
    Replies:
    155
    Views:
    9,346
    gonzo
    Nov 9, 2022
  37. BMP

    Ideal CE on Different Points of Sail

    BMP, Aug 4, 2022
    Replies:
    12
    Views:
    1,545
    tlouth7
    Aug 16, 2022
  38. Sailor Al

    What hold galaxies together?

    Sailor Al, Aug 3, 2022 ... 9 10 11
    Replies:
    161
    Views:
    12,228
    Paul Scott
    Mar 8, 2023
  39. Sailor Al

    Swept Volume Theory

    Sailor Al, Aug 2, 2022 ... 21 22 23
    Replies:
    331
    Views:
    28,715
    C. Dog
    Apr 12, 2024
  40. BMP

    Vortex lift on fractional rigs

    BMP, Jul 23, 2022 ... 2
    Replies:
    15
    Views:
    2,979
    Sailor Al
    Aug 4, 2022
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