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Drag Force is the resisting force experienced by an object moving through a fluid. Check FAQs
FD=γw(G-1)(1-n)tsin(αi)
FD - Drag Force?γw - Unit Weight of Fluid?G - Specific Gravity of Sediment?n - Rugosity Coefficient?t - Volume per Unit Area?αi - Angle of Inclination of Plane to Horizontal?

Drag Force Exerted by Flowing Water Example

With values
With units
Only example

Here is how the Drag Force Exerted by Flowing Water equation looks like with Values.

Here is how the Drag Force Exerted by Flowing Water equation looks like with Units.

Here is how the Drag Force Exerted by Flowing Water equation looks like.

12.0001Edit=9810Edit(1.3Edit-1)(1-0.015Edit)4.78Editsin(60Edit)
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Drag Force Exerted by Flowing Water Solution

Follow our step by step solution on how to calculate Drag Force Exerted by Flowing Water?

FIRST Step Consider the formula
FD=γw(G-1)(1-n)tsin(αi)
Next Step Substitute values of Variables
FD=9810N/m³(1.3-1)(1-0.015)4.78mmsin(60°)
Next Step Convert Units
FD=9810N/m³(1.3-1)(1-0.015)0.0048msin(1.0472rad)
Next Step Prepare to Evaluate
FD=9810(1.3-1)(1-0.015)0.0048sin(1.0472)
Next Step Evaluate
FD=12.0001043036211N
LAST Step Rounding Answer
FD=12.0001N

Drag Force Exerted by Flowing Water Formula Elements

Variables
Functions
Drag Force
Drag Force is the resisting force experienced by an object moving through a fluid.
Symbol: FD
Measurement: ForceUnit: N
Note: Value can be positive or negative.
Unit Weight of Fluid
Unit Weight of Fluid refers to the weight per unit volume, often expressed in N/m³ or lb/ft³ and varies with fluid density (for water 9810N/m3).
Symbol: γw
Measurement: Specific WeightUnit: N/m³
Note: Value should be greater than 0.
Specific Gravity of Sediment
Specific Gravity of Sediment is the ratio of sediment particle density to the density of water, indicating its heaviness.
Symbol: G
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Rugosity Coefficient
The Rugosity Coefficient, also known as the Manning's n, quantifies surface roughness in channels, affecting flow velocity and resistance.
Symbol: n
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Volume per Unit Area
Volume per Unit Area refers to function of diameter of particle for single grain as an inverse measure of surface area for drag or friction.
Symbol: t
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Angle of Inclination of Plane to Horizontal
Angle of Inclination of Plane to Horizontal is formed by the inclination of one plane to another; measured in degrees or radians.
Symbol: αi
Measurement: AngleUnit: °
Note: Value should be between 0 to 90.
sin
Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse.
Syntax: sin(Angle)

Other Formulas to find Drag Force

​Go Drag Force or Intensity of Tractive force
FD=γwm

Other formulas in Drag Force category

​Go Unit Weight of Water given Drag Force
γw=(FD(G-1)(1-n)tsin(αi))
​Go Rugosity Coefficient given Drag Force
n=1-(FDγw(G-1)tsin(αi))
​Go Thickness of Sediment given Drag Force
t=(FDγw(G-1)(1-n)sin(αi))
​Go Angle of Inclination given drag force
αi=arsin(FDγw(G-1)(1-n)t)

How to Evaluate Drag Force Exerted by Flowing Water?

Drag Force Exerted by Flowing Water evaluator uses Drag Force = Unit Weight of Fluid*(Specific Gravity of Sediment-1)*(1-Rugosity Coefficient)*Volume per Unit Area*sin(Angle of Inclination of Plane to Horizontal) to evaluate the Drag Force, The Drag Force Exerted by Flowing Water is the resistance force caused by the motion of a body through a fluid, such as water or air. Drag Force is denoted by FD symbol.

How to evaluate Drag Force Exerted by Flowing Water using this online evaluator? To use this online evaluator for Drag Force Exerted by Flowing Water, enter Unit Weight of Fluid w), Specific Gravity of Sediment (G), Rugosity Coefficient (n), Volume per Unit Area (t) & Angle of Inclination of Plane to Horizontal i) and hit the calculate button.

FAQs on Drag Force Exerted by Flowing Water

What is the formula to find Drag Force Exerted by Flowing Water?
The formula of Drag Force Exerted by Flowing Water is expressed as Drag Force = Unit Weight of Fluid*(Specific Gravity of Sediment-1)*(1-Rugosity Coefficient)*Volume per Unit Area*sin(Angle of Inclination of Plane to Horizontal). Here is an example- 12.0001 = 9810*(1.3-1)*(1-0.015)*0.00478*sin(1.0471975511964).
How to calculate Drag Force Exerted by Flowing Water?
With Unit Weight of Fluid w), Specific Gravity of Sediment (G), Rugosity Coefficient (n), Volume per Unit Area (t) & Angle of Inclination of Plane to Horizontal i) we can find Drag Force Exerted by Flowing Water using the formula - Drag Force = Unit Weight of Fluid*(Specific Gravity of Sediment-1)*(1-Rugosity Coefficient)*Volume per Unit Area*sin(Angle of Inclination of Plane to Horizontal). This formula also uses Sine function(s).
What are the other ways to Calculate Drag Force?
Here are the different ways to Calculate Drag Force-
  • Drag Force=Unit Weight of Fluid*Hydraulic Mean Depth*Bed Slope of a SewerOpenImg
Can the Drag Force Exerted by Flowing Water be negative?
Yes, the Drag Force Exerted by Flowing Water, measured in Force can be negative.
Which unit is used to measure Drag Force Exerted by Flowing Water?
Drag Force Exerted by Flowing Water is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Drag Force Exerted by Flowing Water can be measured.
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