EM 1110-2-1100 (Part II)
30 Apr 02
C
Dimensionless coefficient in the Seelig equation (Equation II-7-2) for the wave
transmission coefficient (Equation II-7-3)
C
Individual wave celerities created by a moving vessel (Equation II-7-21)
[length/time]
Form drag coefficient [dimensionless]
Cc , form
Cc , prop
Propeller drag coefficient [dimensionless]
Cc , fric
Skin friction coefficient [dimensionless]
CD
Coefficient of drag for winds measured at 10-m [dimensionless]
Co , Ci
Initial concentration of some substance in the harbor water and concentration of the
substance after i tidal cycles (Equation II-7-20)
Reflection coefficient [dimensionless]
Cr
Ct
Wave transmission coefficient [dimensionless]
Ct0
Coefficient for wave transmission by flow over the structure [dimensionless]
Ctt
Coefficient for wave transmission through the structure [dimensionless]
d
Water depth [length]
D
Dimensionless drawdown
Displacement of a vessel [length3]
D
D50
Median diameter of armor stone [length]
dc
Channel depth [length]
ds
Water depth at the toe of the structure [length]
E
Dimensionless average per cycle exchange coefficient, a factor for defining the
effectiveness of tidally induced harbor flushing (Equation II-7-20)
F
Freeboard [length]
F
Froude number
Fc, form
Form drag of a vessel (Equation II-7-34) [force]
Fc, fric
Skin friction of a vessel (Equation II-7-35) [force]
Fc, prop
Vessel propeller drag (Equation II-7-39) [force]
Fc, tot
Total longitudinal current load on a vessel (Equation II-7--33) [force]
Fw
Drag force due to wind (Equation II-7-31) [force]
g
h
Structure crest elevation [length]
II-7-88
Harbor Hydrodynamics
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