Hydrodynamics and Aerodynamics

Technical discussion on fluid dynamics: theory and analysis.
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Conceptual Design Amphibious AI Rescue Aircraft Series (GLARE Trimaran Hull & Battery Electric Prop)
2 3
Replies
36
Views
3,493
Rabah
R
Tad
Planing Instability
5 6 7
Replies
98
Views
30,033
TruongNg
T
Frazzle
Scows in the Mini Transat
2 3
Replies
34
Views
1,047
gonzo
gonzo
Paul Scott
Navier Stokes Solved -
2 3
Replies
36
Views
1,735
gonzo
gonzo
BlueBell
Wave Forms
Replies
14
Views
685
gonzo
gonzo
G
sail aerodynamics
64 65 66
Replies
989
Views
442,859
brian eiland
brian eiland
N
Albin 28 Hydrodynamics
Replies
5
Views
312
bajansailor
bajansailor
U
Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up.
2
Replies
20
Views
1,577
tropostudio
T
Remmlinger
New VPP based on Numerical Modeling
Replies
13
Views
5,184
CarlosK2
C
T
Micro Foiler Build
Replies
12
Views
1,048
The Wing Guy
T
Leo Lazauskas
SWATH resistance predictions using Michlet
4 5 6
Replies
76
Views
28,641
Leo Lazauskas
Leo Lazauskas
Leo Lazauskas
Tearing Velocity?
2
Replies
25
Views
2,213
Leo Lazauskas
Leo Lazauskas
Paul Scott
Bigger jibs, smaller mains on Merlin Rockets
Replies
2
Views
298
brian eiland
brian eiland
R
Aerodynamics of 'overlapped' staysails
2 3
Replies
35
Views
15,331
brian eiland
brian eiland
6
Speed and efficiency, single or twins I/O same HP total
Replies
7
Views
652
fallguy
fallguy
C
The Mast as a Problem: a Legend
Replies
11
Views
1,064
Doug Halsey
Doug Halsey
S
Minimal drag float/ama for a marathon racer
2
Replies
17
Views
1,502
Skip Johnson
S
J
Savitsky method result understanding confusion
Replies
7
Views
3,837
Jimboat
Jimboat
P
New on skin resistance
Replies
12
Views
1,479
gonzo
gonzo
C
Summary of the hydroDynamic Problem of small yachts at sea
2 3 4
Replies
57
Views
3,673
CarlosK2
C
D
43.6% Drag Reduction
Replies
1
Views
926
gonzo
gonzo
M
Is circulation real?
51 52 53
Replies
781
Views
150,647
tropostudio
T
C
Simplified Froude-Krylov Force
2 3
Replies
35
Views
2,729
tropostudio
T
G
Rc sailrocket
2 3 4
Replies
52
Views
14,617
Greg Mc
G
A
OpenFOAM calculation mesh artefacts.
Replies
5
Views
1,199
Night Sky Yachts
Night Sky Yachts
C
The three causes of bow-down
2
Replies
21
Views
1,768
TANSL
T
M
Sailboats, wide sterns and bow-down trim - what is too much
2 3
Replies
30
Views
3,464
Jamie Kennedy 108
J
C
Savitsky 1973
Replies
12
Views
1,814
CarlosK2
C
J
Creating lift in displacement hulls
2
Replies
21
Views
2,887
rxcomposite
rxcomposite
Gone Ballistic
Overbalanced rudder with no balance area
2
Replies
24
Views
3,379
Gone Ballistic
Gone Ballistic
A
JunkFoil
2
Replies
20
Views
1,907
Skip Johnson
S
B
Why are sails tall instead of wide?
2
Replies
17
Views
2,510
Jamie Kennedy 108
J
J
Lift/Drag/Stall of hull/keel/rudder combo
Replies
3
Views
1,092
Jamie Kennedy 108
J
Daniel Reilly
Tom Speer's proa foil sections: Any new data?
Replies
3
Views
1,292
Daniel Reilly
Daniel Reilly
CocoonCruisers
Gyrocopter rotor instead of canvas sail ?
4 5 6
Replies
77
Views
27,400
Paul Scott
Paul Scott
L
Hull Resistance Prediction 14ft Sailing Dinghy
Replies
7
Views
1,625
Paul Scott
Paul Scott
Tops
Small Standing Lug Sail Design
Replies
12
Views
2,217
Tops
Tops
M
Small displacement craft resistance
Replies
8
Views
4,702
wallabycreek
W
dustman
Semi balanced wing sail pivot axis placement
Replies
5
Views
1,517
DogCavalry
DogCavalry
E
Wagner Keel.
Replies
9
Views
2,775
philSweet
philSweet
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