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
Replies
29
Views
1,866
Rabah
R
T
Micro Foiler Build
Replies
12
Views
474
The Wing Guy
T
Leo Lazauskas
SWATH resistance predictions using Michlet
4 5 6
Replies
76
Views
26,944
Leo Lazauskas
Leo Lazauskas
Leo Lazauskas
Tearing Velocity?
2
Replies
25
Views
1,153
Leo Lazauskas
Leo Lazauskas
Paul Scott
Bigger jibs, smaller mains on Merlin Rockets
Replies
2
Views
138
brian eiland
brian eiland
U
Xflir5 is telling me as chord length reduces and the reynold number drops drag goes up.
Replies
11
Views
563
tropostudio
T
R
Aerodynamics of 'overlapped' staysails
2 3
Replies
35
Views
14,563
brian eiland
brian eiland
6
Speed and efficiency, single or twins I/O same HP total
Replies
7
Views
397
fallguy
fallguy
C
The Mast as a Problem: a Legend
Replies
11
Views
810
Doug Halsey
Doug Halsey
S
Minimal drag float/ama for a marathon racer
2
Replies
17
Views
1,086
Skip Johnson
S
J
Savitsky method result understanding confusion
Replies
7
Views
3,532
Jimboat
Jimboat
P
New on skin resistance
Replies
12
Views
1,185
gonzo
gonzo
C
Summary of the hydroDynamic Problem of small yachts at sea
2 3 4
Replies
57
Views
2,659
CarlosK2
C
D
43.6% Drag Reduction
Replies
1
Views
812
gonzo
gonzo
M
Is circulation real?
51 52 53
Replies
781
Views
140,507
tropostudio
T
C
Simplified Froude-Krylov Force
2 3
Replies
35
Views
2,011
tropostudio
T
G
Rc sailrocket
2 3 4
Replies
52
Views
13,818
Greg Mc
G
A
OpenFOAM calculation mesh artefacts.
Replies
5
Views
1,034
Night Sky Yachts
Night Sky Yachts
C
The three causes of bow-down
2
Replies
21
Views
1,288
TANSL
T
M
Sailboats, wide sterns and bow-down trim - what is too much
2 3
Replies
30
Views
2,711
Jamie Kennedy 108
J
C
Savitsky 1973
Replies
12
Views
1,532
CarlosK2
C
J
Creating lift in displacement hulls
2
Replies
21
Views
2,300
rxcomposite
rxcomposite
Gone Ballistic
Overbalanced rudder with no balance area
2
Replies
24
Views
2,811
Gone Ballistic
Gone Ballistic
A
JunkFoil
2
Replies
20
Views
1,563
Skip Johnson
S
G
sail aerodynamics
64 65 66
Replies
988
Views
428,871
gonzo
gonzo
B
Why are sails tall instead of wide?
2
Replies
17
Views
2,122
Jamie Kennedy 108
J
J
Lift/Drag/Stall of hull/keel/rudder combo
Replies
3
Views
946
Jamie Kennedy 108
J
Daniel Reilly
Tom Speer's proa foil sections: Any new data?
Replies
3
Views
1,136
Daniel Reilly
Daniel Reilly
CocoonCruisers
Gyrocopter rotor instead of canvas sail ?
4 5 6
Replies
77
Views
26,077
Paul Scott
Paul Scott
L
Hull Resistance Prediction 14ft Sailing Dinghy
Replies
7
Views
1,400
Paul Scott
Paul Scott
Tops
Small Standing Lug Sail Design
Replies
12
Views
1,824
Tops
Tops
M
Small displacement craft resistance
Replies
8
Views
4,431
wallabycreek
W
dustman
Semi balanced wing sail pivot axis placement
Replies
5
Views
1,349
DogCavalry
DogCavalry
E
Wagner Keel.
Replies
9
Views
2,546
philSweet
philSweet
Goranskoog
  • Locked
Emission-Free Wave-Powered Vessel Concept – All Comments Welcome
4 5 6
Replies
87
Views
6,753
Boat Design Net Moderator
Boat Design Net Moderator
aiprt
Forces on mast foot
2 3
Replies
30
Views
9,811
rxcomposite
rxcomposite
P
Any benefit to rotating a non-wing / non-teardrop mast?
2
Replies
16
Views
6,014
bruceb
B
Goranskoog
Hydrodynamic Evaluation Request: Wave-Powered Cargo Vessel Using Internal Through-Channels
Replies
1
Views
1,128
fallguy
fallguy
G
Catamaran Hull Speeds
Replies
6
Views
1,675
portacruise
P
New Vega
Efficient and ocean-going?
2
Replies
27
Views
3,112
gonzo
gonzo
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