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Barge Particulars
Length
L =
m
Breath
B =
m
Draft
T =
m
Towing speed
V
tow
=
knots
Windage Area
Hull (surface above waterline)
S
wind-hull
=
m
2
Shape coeffiecient
C
s
=
Height coefficient
C
h
=
Additional surface of Cargo
S
wind-additional
=
m
2
Shape coeffiecient
C
s
=
Height coefficient
C
h
=
Hull+Cargo windage area
Area
wind
=
m
2
Current Area
Surface
S
current
=
m
2
Drag coefficient
Current screen
Area
current
=
m
2
Environmental Condition
Sea water density
ρ
water
=
kg/m
3
Air density
ρ
air
=
kg/m
3
Wave significant height
H
s
=
m
Wind speed
V
wind
=
knots
Current speed
V
current
=
knots
Wave drift force
=
Tons
Resistance due to towing in calm water
Tons
Additional resistance due to wind and current
Tons
TOTAL BARGE RESISTANCE =
Tons
Tug boat efficiency
TUG BOAT BOLLARD PULL CAPACITY
=
Tons
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