Average Current Speed for Form Drag of Vessel Calculator

✖Form Drag of a Vessel [Force] is increase in resistance due to pressure.ⓘ Form Drag of a Vessel [F_{c, form}]			+10% -10%
✖Water Density is mass per unit of water.ⓘ Water Density [ρ_water]			+10% -10%
✖Form Drag Coefficient [dimensionless] is the drag caused by the separation of the boundary layer from a surface and the wake created by that separation.ⓘ Form Drag Coefficient [C_{c, form}]			+10% -10%
✖Vessel Beam [length] is the widest part of the vessel.ⓘ Vessel Beam [B]			+10% -10%
✖Vessel Draft [length] of a ship's hull is the vertical distance between the waterline and the bottom of the hull.ⓘ Vessel Draft [T]			+10% -10%
✖Angle of the Current Relative to the Longitudinal Axis of the Vessel.ⓘ Angle of the Current [θ_c]			+10% -10%

✖Longshore Current Speed is the speed of a longshore current, which is a current that flows parallel to the shore within the zone of breaking waves.ⓘ Average Current Speed for Form Drag of Vessel [V]

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Formula

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Average Current Speed for Form Drag of Vessel

Formula

`"V" = -sqrt("F"_{"c, form"}/0.5*"ρ"_{"water"}*"C"_{"c, form"}*"B"*"T"*cos("θ"_{"c"}))`

Example

`"-12827.263439m/s"=-sqrt("12kN"/0.5*"1000kg/m³"*"5"*"2m"*"1.68m"*cos("20"))`

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Average Current Speed for Form Drag of Vessel Solution

STEP 0: Pre-Calculation Summary

Formula Used

Longshore Current Speed = -sqrt(Form Drag of a Vessel/0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*cos(Angle of the Current))
V = -sqrt(F_{c, form}/0.5*ρ_water*C_{c, form}*B*T*cos(θ_c))
This formula uses 2 Functions, 7 Variables

Functions Used

cos - Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle., cos(Angle)
sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Longshore Current Speed - (Measured in Meter per Second) - Longshore Current Speed is the speed of a longshore current, which is a current that flows parallel to the shore within the zone of breaking waves.
Form Drag of a Vessel - (Measured in Newton) - Form Drag of a Vessel [Force] is increase in resistance due to pressure.
Water Density - (Measured in Kilogram per Cubic Meter) - Water Density is mass per unit of water.
Form Drag Coefficient - Form Drag Coefficient [dimensionless] is the drag caused by the separation of the boundary layer from a surface and the wake created by that separation.
Vessel Beam - (Measured in Meter) - Vessel Beam [length] is the widest part of the vessel.
Vessel Draft - (Measured in Meter) - Vessel Draft [length] of a ship's hull is the vertical distance between the waterline and the bottom of the hull.
Angle of the Current - Angle of the Current Relative to the Longitudinal Axis of the Vessel.

STEP 1: Convert Input(s) to Base Unit

Form Drag of a Vessel: 12 Kilonewton --> 12000 Newton (Check conversion here)
Water Density: 1000 Kilogram per Cubic Meter --> 1000 Kilogram per Cubic Meter No Conversion Required
Form Drag Coefficient: 5 --> No Conversion Required
Vessel Beam: 2 Meter --> 2 Meter No Conversion Required
Vessel Draft: 1.68 Meter --> 1.68 Meter No Conversion Required
Angle of the Current: 20 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V = -sqrt(F_{c, form}/0.5*ρ_water*C_{c, form}*B*T*cos(θ_c)) --> -sqrt(12000/0.5*1000*5*2*1.68*cos(20))

Evaluating ... ...

V = -12827.2634385967

STEP 3: Convert Result to Output's Unit

-12827.2634385967 Meter per Second --> No Conversion Required

FINAL ANSWER

-12827.2634385967 ≈ -12827.263439 Meter per Second <-- Longshore Current Speed

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Coastal and Ocean Engineering » Surf Zone Hydrodynamics » Harbor Hydrodynamics » Mooring » Mooring Forces » Form Drag » Average Current Speed for Form Drag of Vessel

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Coorg Institute of Technology (CIT), Coorg

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< 7 Form Drag Calculators

Average Current Speed for Form Drag of Vessel

Go Longshore Current Speed = -sqrt(Form Drag of a Vessel/0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*cos(Angle of the Current))

Angle of Current Relative to Longitudinal Axis of Vessel for Form Drag of Vessel

Go Angle of the Current = acos(-Form Drag of a Vessel/(0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*Average Current Speed^2))

Form Drag Coefficient given Form Drag of Vessel

Go Form Drag Coefficient = -Form Drag of a Vessel/(0.5*Water Density*Vessel Beam*Vessel Draft*Average Current Speed^2*cos(Angle of the Current))

Vessel Draft given Form Drag of Vessel

Go Vessel Draft = Form Drag of a Vessel/(-0.5*Water Density*Form Drag Coefficient*Vessel Beam*Average Current Speed^2*cos(Angle of the Current))

Vessel Beam given Form Drag of Vessel

Go Vessel Beam = -Form Drag of a Vessel/(0.5*Water Density*Form Drag Coefficient*Vessel Draft*Average Current Speed^2*cos(Angle of the Current))

Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area

Go Form Drag of a Vessel = -0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*Average Current Speed^2*cos(Angle of the Current)

Form Drag of Vessel given Total Longitudinal Current Load on Vessel

Go Form Drag of a Vessel = Total Longitudinal Current Load on a Vessel-Skin Friction of a Vessel-Vessel Propeller Drag

Average Current Speed for Form Drag of Vessel Formula

What is Mooring in Shipping?

Mooring is a procedure to anchor the ship to a fixed or floating element and keep it connected during loading or unloading operations. Safe mooring must withstand several forces, such as wind, the current, the tide and waves.

How to Calculate Average Current Speed for Form Drag of Vessel?

Average Current Speed for Form Drag of Vessel calculator uses Longshore Current Speed = -sqrt(Form Drag of a Vessel/0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*cos(Angle of the Current)) to calculate the Longshore Current Speed, Average Current Speed for Form Drag of Vessel is defined as parameter influencing Longitudinal current loads on ships and Form drag is due to flow of water past vessel's cross-sectional area. Longshore Current Speed is denoted by V symbol.

How to calculate Average Current Speed for Form Drag of Vessel using this online calculator? To use this online calculator for Average Current Speed for Form Drag of Vessel, enter Form Drag of a Vessel (F_{c, form}), Water Density (ρ_water), Form Drag Coefficient (C_{c, form}), Vessel Beam (B), Vessel Draft (T) & Angle of the Current (θ_c) and hit the calculate button. Here is how the Average Current Speed for Form Drag of Vessel calculation can be explained with given input values -> -12827.263439 = -sqrt(12000/0.5*1000*5*2*1.68*cos(20)).

FAQ

What is Average Current Speed for Form Drag of Vessel?

Average Current Speed for Form Drag of Vessel is defined as parameter influencing Longitudinal current loads on ships and Form drag is due to flow of water past vessel's cross-sectional area and is represented as V = -sqrt(F_{c, form}/0.5*ρ_water*C_{c, form}*B*T*cos(θ_c)) or Longshore Current Speed = -sqrt(Form Drag of a Vessel/0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*cos(Angle of the Current)). Form Drag of a Vessel [Force] is increase in resistance due to pressure, Water Density is mass per unit of water, Form Drag Coefficient [dimensionless] is the drag caused by the separation of the boundary layer from a surface and the wake created by that separation, Vessel Beam [length] is the widest part of the vessel, Vessel Draft [length] of a ship's hull is the vertical distance between the waterline and the bottom of the hull & Angle of the Current Relative to the Longitudinal Axis of the Vessel.

How to calculate Average Current Speed for Form Drag of Vessel?

Average Current Speed for Form Drag of Vessel is defined as parameter influencing Longitudinal current loads on ships and Form drag is due to flow of water past vessel's cross-sectional area is calculated using Longshore Current Speed = -sqrt(Form Drag of a Vessel/0.5*Water Density*Form Drag Coefficient*Vessel Beam*Vessel Draft*cos(Angle of the Current)). To calculate Average Current Speed for Form Drag of Vessel, you need Form Drag of a Vessel (F_{c, form}), Water Density (ρ_water), Form Drag Coefficient (C_{c, form}), Vessel Beam (B), Vessel Draft (T) & Angle of the Current (θ_c). With our tool, you need to enter the respective value for Form Drag of a Vessel, Water Density, Form Drag Coefficient, Vessel Beam, Vessel Draft & Angle of the Current and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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