Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.

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  1. andrew spiteri

    Air Lubrication Drag Reduction for Smaller Vessels

    andrew spiteri, Jan 10, 2024 ... 3 4 5
    Replies:
    68
    Views:
    14,142
    jakeeeef
    Jul 7, 2024
  2. Arton

    Does anyone Know about Slamming load

    Arton, Jul 5, 2024
    Replies:
    7
    Views:
    2,995
    Arton
    Jul 6, 2024
  3. Dieter51

    Naca Airfoils shape and rocker oft flat bottomed boats

    Dieter51, Jun 9, 2024 ... 3 4 5
    Replies:
    73
    Views:
    8,223
    Dieter51
    Jul 6, 2024
  4. mitch184

    Breakaway angle/rise off transom

    mitch184, Jun 12, 2024
    Replies:
    2
    Views:
    2,808
    mitch184
    Jul 2, 2024
  5. Erwan

    Sail's 2D Section Drag & Surface Roughness

    Erwan, Jun 2, 2024
    Replies:
    2
    Views:
    2,526
    Erwan
    Jul 2, 2024
  6. Heimfried

    What foil to reduce drag at circular motor shaft?

    Heimfried, Jun 5, 2024
    Replies:
    14
    Views:
    3,299
    philSweet
    Jun 21, 2024
  7. Habar Khan

    How to calculate pitch angle and roll angle

    Habar Khan, Jun 21, 2024
    Replies:
    0
    Views:
    2,341
    Habar Khan
    Jun 21, 2024
  8. mc_rash

    Small displacement craft resistance

    mc_rash, Jun 11, 2024
    Replies:
    7
    Views:
    2,458
    messabout
    Jun 15, 2024
  9. Forecaddie

    Overlapping schooner sail plan

    Forecaddie, Feb 3, 2024
    Replies:
    9
    Views:
    3,921
    C. Dog
    Jun 5, 2024
  10. dustman

    Foil balance point changes with aspect ratio?

    dustman, May 5, 2024
    Replies:
    13
    Views:
    2,983
    dustman
    May 12, 2024
  11. 67-LS1

    Weight vs horsepower

    67-LS1, May 11, 2024
    Replies:
    11
    Views:
    3,025
    67-LS1
    May 12, 2024
  12. Simme_swede

    Finding optimal propeller dimension based on ships speed and hull resistance

    Simme_swede, Apr 2, 2024 ... 2
    Replies:
    16
    Views:
    4,829
    Simme_swede
    Apr 28, 2024
  13. Hamza Asif

    Illegal connectivity error in Ansys AQWA

    Hamza Asif, Apr 11, 2024
    Replies:
    3
    Views:
    2,936
    Ad Hoc
    Apr 14, 2024
  14. Matti Nakkalajarvi

    Jet impeller speed vs water flow

    Matti Nakkalajarvi, Apr 12, 2024
    Replies:
    3
    Views:
    3,097
    Matti Nakkalajarvi
    Apr 13, 2024
  15. slopecarver

    Moving extending hull LWL (Catamaran)

    slopecarver, Apr 5, 2024
    Replies:
    4
    Views:
    2,467
    Paul Scott
    Apr 6, 2024
  16. Umar Farooq

    Frequency Statistical Analysis (AQWA) - Motion Analysis

    Umar Farooq, Mar 28, 2024
    Replies:
    6
    Views:
    2,991
    Umar Farooq
    Apr 3, 2024
  17. Paul Scott

    Patin Catalan piece in current Seahorse Magazine

    Paul Scott, Mar 29, 2024
    Replies:
    4
    Views:
    2,475
    cluttonfred
    Mar 30, 2024
  18. naserrishehri

    Boat lines plan

    naserrishehri, Mar 22, 2024 ... 2
    Replies:
    17
    Views:
    4,592
    Adler
    Mar 27, 2024
  19. dustman

    Determining the center of lift for a deep vee hull?

    dustman, Feb 23, 2024 ... 3 4 5
    Replies:
    69
    Views:
    8,256
    CarlosK2
    Mar 18, 2024
  20. BlueBell

    "Quarter Horse" Designer Interview

    BlueBell, Mar 12, 2024
    Replies:
    0
    Views:
    2,070
    BlueBell
    Mar 12, 2024
  21. DogCavalry

    Buttocks

    DogCavalry, Sep 30, 2019 ... 7 8 9
    Replies:
    120
    Views:
    16,596
    DogCavalry
    Mar 9, 2024
  22. skaraborgcraft

    Bow half angle of entrance

    skaraborgcraft, Jan 11, 2023 ... 2 3 4
    Replies:
    50
    Views:
    10,266
    TeddyDiver
    Feb 24, 2024
  23. ToMy

    Semi-displacement boats don't generate lift?

    ToMy, Feb 28, 2023 ... 9 10 11
    Replies:
    163
    Views:
    24,431
    patzefran
    Feb 20, 2024
  24. zoran

    Keel planing

    zoran, Jun 19, 2023
    Replies:
    14
    Views:
    5,733
    By Chance
    Feb 7, 2024
  25. Redaidan345

    Centerline channel for attached Turbulent Flow?

    Redaidan345, Jan 22, 2024 ... 2
    Replies:
    15
    Views:
    3,668
    DogCavalry
    Jan 26, 2024
  26. Remmlinger

    New VPP based on Numerical Modeling

    Remmlinger, Jan 11, 2024
    Replies:
    8
    Views:
    3,264
    Mikko Brummer
    Jan 19, 2024
  27. laukejas

    Definition of bow entry angle

    laukejas, Nov 13, 2018 ... 2
    Replies:
    18
    Views:
    14,226
    skaraborgcraft
    Jan 16, 2024
  28. fallguy

    transom edge sharp or not

    fallguy, Jul 9, 2018
    Replies:
    12
    Views:
    6,463
    baeckmo
    Jan 6, 2024
  29. Furkan

    Calculating resistance and making a power prediction for a small watercraft.

    Furkan, Jan 2, 2024
    Replies:
    2
    Views:
    1,981
    BlueBell
    Jan 2, 2024
  30. Will Fraser

    Stern taper on semi-displacement hulls

    Will Fraser, May 15, 2018 ... 2
    Replies:
    15
    Views:
    7,869
    Stephen Ditmore
    Jan 1, 2024
  31. Julien_C

    Development of a reliable performance prediction tool for semi-planing hull forms

    Julien_C, Mar 23, 2013
    Replies:
    4
    Views:
    4,086
    Stephen Ditmore
    Jan 1, 2024
  32. lunatic

    Rowing: blade travel extension through flow induced vibration

    lunatic, Nov 12, 2023
    Replies:
    7
    Views:
    3,471
    lunatic
    Dec 20, 2023
  33. OhMyBrain

    Time Domain Motion Analysis Results

    OhMyBrain, Nov 21, 2023
    Replies:
    4
    Views:
    2,634
    jehardiman
    Nov 23, 2023
  34. brian eiland

    Tacking a Square-Rigged Vessel

    brian eiland, Oct 30, 2023 ... 2
    Replies:
    17
    Views:
    5,460
    brian eiland
    Nov 14, 2023
  35. Alan Cattelliot

    Hydrodynamics of Bulbs

    Alan Cattelliot, Sep 25, 2023 ... 2
    Replies:
    17
    Views:
    4,629
    Howlandwoodworks
    Nov 12, 2023
  36. alan craig

    Combined planing and foiling

    alan craig, Nov 5, 2023
    Replies:
    5
    Views:
    2,516
    alan craig
    Nov 8, 2023
  37. Ousmane

    Help Needed: Calculating Canoe Resistance for Mechanical Engineering Project

    Ousmane, Oct 31, 2023 ... 2
    Replies:
    22
    Views:
    4,111
    BlueBell
    Nov 5, 2023
  38. Toepfer Marine

    I am looking for a book on building a Propeller tunnel

    Toepfer Marine, Jul 21, 2023
    Replies:
    5
    Views:
    2,857
    BMcF
    Nov 5, 2023
  39. Revboat

    Aerodynamics of 'overlapped' staysails

    Revboat, Jun 23, 2021 ... 2
    Replies:
    28
    Views:
    9,269
    brian eiland
    Oct 19, 2023
  40. Forecaddie

    Fixed wing sail controls and drawings

    Forecaddie, Aug 31, 2023
    Replies:
    14
    Views:
    4,491
    carbon_pirate
    Oct 19, 2023
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