Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. Toepfer Marine

    I am looking for a book on building a Propeller tunnel

    Toepfer Marine, Jul 21, 2023
    Replies:
    3
    Views:
    628
    wet feet
    Sep 24, 2023 at 8:18 AM
  2. Mikko Brummer

    CFD state of the art

    Mikko Brummer, Dec 17, 2015 ... 2 3 4
    Replies:
    49
    Views:
    10,975
    CocoonCruisers
    Sep 21, 2023 at 10:54 AM
  3. ToMy

    Semi-displacement boats don't generate lift?

    ToMy, Feb 28, 2023 ... 3 4 5
    Replies:
    64
    Views:
    4,995
    BlueBell
    Sep 11, 2023
  4. dina

    boats that are designed with car aerodynamic method?

    dina, Oct 5, 2012 ... 15 16 17
    Replies:
    244
    Views:
    37,352
    Erwan
    Sep 10, 2023
  5. Sailor Al

    Swept Volume Theory

    Sailor Al, Aug 2, 2022 ... 19 20 21
    Replies:
    314
    Views:
    21,307
    Sailor Al
    Sep 9, 2023
  6. Forecaddie

    Fixed wing sail controls and drawings

    Forecaddie, Aug 31, 2023
    Replies:
    9
    Views:
    626
    CT249
    Sep 2, 2023
  7. seandepagnier

    sheeting angle for best drive with roller furling.

    seandepagnier, Aug 2, 2023
    Replies:
    5
    Views:
    734
    Blueknarr
    Aug 7, 2023
  8. Orey10m

    calculating Minimum thrust needed against current

    Orey10m, Aug 7, 2023
    Replies:
    5
    Views:
    498
    Barry
    Aug 7, 2023
  9. rwatson
    Locked

    Swimming Curved Object - powered by the water flow

    rwatson, Jul 12, 2023 ... 2
    Replies:
    15
    Views:
    1,668
    Boat Design Net Moderator
    Aug 4, 2023
  10. IngLaTorre

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

    IngLaTorre, Jul 23, 2023
    Replies:
    11
    Views:
    842
    IngLaTorre
    Jul 25, 2023
  11. Cow Cocky

    Rudder counter balance

    Cow Cocky, Jul 23, 2023
    Replies:
    11
    Views:
    781
    jehardiman
    Jul 24, 2023
  12. mtumut

    Prandtl Tank - Smallest towing tank

    mtumut, Oct 26, 2016
    Replies:
    5
    Views:
    2,566
    Robbo62
    Jul 21, 2023
  13. 67-LS1

    Increasing planing speed for a (fiberglass) Lyman Biscayne

    67-LS1, Jul 17, 2023
    Replies:
    14
    Views:
    1,051
    67-LS1
    Jul 20, 2023
  14. CatMonoceros

    Keel Spillplate?

    CatMonoceros, Jul 15, 2023
    Replies:
    9
    Views:
    678
    wet feet
    Jul 17, 2023
  15. zoran

    Keel planing

    zoran, Jun 19, 2023
    Replies:
    11
    Views:
    1,885
    Manfred.pech
    Jul 16, 2023
  16. B.NARENDHIRAN

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

    B.NARENDHIRAN, Jul 12, 2023
    Replies:
    3
    Views:
    677
    baeckmo
    Jul 12, 2023
  17. nrbt

    trim, draft calculation for counter ballast calculator

    nrbt, Jul 5, 2023
    Replies:
    3
    Views:
    729
    Ad Hoc
    Jul 5, 2023
  18. Squidly-Diddly

    explain the very rough surface of Gators and Crocs, hydrodynamically

    Squidly-Diddly, Jun 19, 2023 ... 2
    Replies:
    15
    Views:
    1,602
    Squidly-Diddly
    Jun 30, 2023
  19. Solario

    Thrust greater than drag

    Solario, May 18, 2023 ... 6 7 8
    Replies:
    110
    Views:
    7,282
    Solario
    Jun 23, 2023
  20. MalSmith

    Yet another analogy for lift

    MalSmith, May 15, 2023
    Replies:
    14
    Views:
    1,108
    DogCavalry
    May 26, 2023
  21. Iridian

    Forward Swept Daggerboards?

    Iridian, Jun 22, 2021
    Replies:
    10
    Views:
    2,287
    Paul Scott
    May 2, 2023
  22. dustman

    Wing sail questions

    dustman, Jan 3, 2023 ... 2
    Replies:
    25
    Views:
    2,818
    dustman
    May 1, 2023
  23. Alan Cattelliot

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

    Alan Cattelliot, Feb 14, 2023 ... 3 4 5
    Replies:
    61
    Views:
    4,968
    Alan Cattelliot
    Apr 27, 2023
  24. 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:
    4,953
    Alan Cattelliot
    Apr 27, 2023
  25. Remmlinger

    Prandtl's lifting-line method for sails

    Remmlinger, Feb 21, 2023 ... 2 3 4
    Replies:
    45
    Views:
    4,267
    Jack Cecil
    Apr 12, 2023
  26. fallguy

    Modifyng the beaching keel

    fallguy, Apr 5, 2023
    Replies:
    13
    Views:
    883
    Milehog
    Apr 7, 2023
  27. lunatic

    Need analysis of rowing experiments reducing blade area while maintaining performance

    lunatic, Jan 12, 2023 ... 2
    Replies:
    15
    Views:
    1,802
    Alan Cattelliot
    Apr 4, 2023
  28. Mikko Brummer

    Is circulation real?

    Mikko Brummer, Jan 25, 2013 ... 46 47 48
    Replies:
    718
    Views:
    63,779
    Sailor Al
    Mar 30, 2023
  29. mitch184

    Quantifying Drag of Rocker

    mitch184, Mar 10, 2023
    Replies:
    9
    Views:
    930
    mitch184
    Mar 14, 2023
  30. Sailor Al

    What hold galaxies together?

    Sailor Al, Aug 3, 2022 ... 9 10 11
    Replies:
    161
    Views:
    10,101
    Paul Scott
    Mar 8, 2023
  31. hashtag_laeuft

    Foil section design using xflr5

    hashtag_laeuft, Jan 26, 2023 ... 2
    Replies:
    20
    Views:
    2,317
    Erwan
    Feb 7, 2023
  32. Lynton Banks

    Lifting strakes do they produce lift in the submerged sections

    Lynton Banks, Jan 27, 2023 ... 2
    Replies:
    26
    Views:
    2,337
    Lynton Banks
    Feb 5, 2023
  33. Joe Cruise

    Ballast issue

    Joe Cruise, Feb 1, 2023
    Replies:
    5
    Views:
    870
    fallguy
    Feb 3, 2023
  34. rwatson

    Flettner Rotors - Calculating Rotating Skin Friction

    rwatson, Jun 16, 2018 ... 2 3
    Replies:
    39
    Views:
    9,779
    rwatson
    Jan 28, 2023
  35. James T

    Looking for a mesh file of an open geometry

    James T, Jan 26, 2023
    Replies:
    0
    Views:
    648
    James T
    Jan 26, 2023
  36. skaraborgcraft

    Bow half angle of entrance

    skaraborgcraft, Jan 11, 2023 ... 2
    Replies:
    29
    Views:
    1,919
    skaraborgcraft
    Jan 20, 2023
  37. dustman

    Stalling behaviors of foils based on aspect ratio or chord?

    dustman, Jan 7, 2023 ... 2 3 4
    Replies:
    54
    Views:
    3,658
    DCockey
    Jan 15, 2023
  38. serdar

    Daggerboard Design for a Dinghy

    serdar, Jan 3, 2023 ... 2
    Replies:
    18
    Views:
    1,636
    serdar
    Jan 11, 2023
  39. JoshTruman

    Vertical shear forces and vertical bending moments in regular waves

    JoshTruman, Jan 1, 2023
    Replies:
    8
    Views:
    926
    jehardiman
    Jan 5, 2023
  40. Sailor Al

    Was Marchaj having us on?

    Sailor Al, Apr 12, 2021 ... 14 15 16
    Replies:
    235
    Views:
    19,458
    gonzo
    Jan 5, 2023
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