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

STEP 0: Pre-Calculation Summary
Formula Used
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)
Fc, form = -0.5*ρwater*Cc, form*B*T*Vc^2*cos(θc)
This formula uses 1 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)
Variables Used
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.
Average Current Speed - (Measured in Meter per Second) - Average Current Speed [length/time] defined as the speed of Ocean currents that are continuous, predictable, directional movement of seawater.
Angle of the Current - Angle of the Current Relative to the Longitudinal Axis of the Vessel.
STEP 1: Convert Input(s) to Base Unit
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
Average Current Speed: 25 Meter per Hour --> 0.00694444444444444 Meter per Second (Check conversion here)
Angle of the Current: 20 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Fc, form = -0.5*ρwater*Cc, form*B*T*Vc^2*cos(θc) --> -0.5*1000*5*2*1.68*0.00694444444444444^2*cos(20)
Evaluating ... ...
Fc, form = -0.165311020410517
STEP 3: Convert Result to Output's Unit
-0.165311020410517 Newton -->-0.000165311020410517 Kilonewton (Check conversion here)
FINAL ANSWER
-0.000165311020410517 -0.000165 Kilonewton <-- Form Drag of a Vessel
(Calculation completed in 00.004 seconds)

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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

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

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)
Fc, form = -0.5*ρwater*Cc, form*B*T*Vc^2*cos(θc)

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

Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area calculator uses 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) to calculate the Form Drag of a Vessel, The Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area influencing Longitudinal current loads on ships are taken from procedures by NAVFAC Design Manual DM26.5. Form Drag of a Vessel is denoted by Fc, form symbol.

How to calculate Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area using this online calculator? To use this online calculator for Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area, enter Water Density water), Form Drag Coefficient (Cc, form), Vessel Beam (B), Vessel Draft (T), Average Current Speed (Vc) & Angle of the Current c) and hit the calculate button. Here is how the Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area calculation can be explained with given input values -> -1.7E-7 = -0.5*1000*5*2*1.68*0.00694444444444444^2*cos(20).

FAQ

What is Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area?
The Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area influencing Longitudinal current loads on ships are taken from procedures by NAVFAC Design Manual DM26.5 and is represented as Fc, form = -0.5*ρwater*Cc, form*B*T*Vc^2*cos(θc) or 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). 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, Average Current Speed [length/time] defined as the speed of Ocean currents that are continuous, predictable, directional movement of seawater & Angle of the Current Relative to the Longitudinal Axis of the Vessel.
How to calculate Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area?
The Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area influencing Longitudinal current loads on ships are taken from procedures by NAVFAC Design Manual DM26.5 is calculated using 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). To calculate Form Drag of Vessel due to Flow of Water Past Vessel's Cross-sectional Area, you need Water Density water), Form Drag Coefficient (Cc, form), Vessel Beam (B), Vessel Draft (T), Average Current Speed (Vc) & Angle of the Current c). With our tool, you need to enter the respective value for Water Density, Form Drag Coefficient, Vessel Beam, Vessel Draft, Average Current Speed & 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.
How many ways are there to calculate Form Drag of a Vessel?
In this formula, Form Drag of a Vessel uses Water Density, Form Drag Coefficient, Vessel Beam, Vessel Draft, Average Current Speed & Angle of the Current. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Form Drag of a Vessel = Total Longitudinal Current Load on a Vessel-Skin Friction of a Vessel-Vessel Propeller Drag
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