Friction Velocity given Dimensionless Fetch Calculator

✖Straight Line Distance over which Wind Blows is defined as total stretch of wind motion in a straight line influencing other parameters of the wave.ⓘ Straight Line Distance over which Wind Blows [X]			+10% -10%
✖Dimensionless Fetch for the empirical prediction methods is the distance over water that the wind blows in a single direction.ⓘ Dimensionless Fetch [X']			+10% -10%

✖Friction Velocity, also called shear velocity, is a form by which a shear stress may be re-written in units of velocity.ⓘ Friction Velocity given Dimensionless Fetch [V_f]

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Friction Velocity given Dimensionless Fetch Solution

STEP 0: Pre-Calculation Summary

Formula Used

Friction Velocity = sqrt([g]*Straight Line Distance over which Wind Blows/Dimensionless Fetch)
V_f = sqrt([g]*X/X')
This formula uses 1 Constants, 1 Functions, 3 Variables

Constants Used

[g] - Gravitational acceleration on Earth Value Taken As 9.80665

Functions Used

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

Friction Velocity - (Measured in Meter per Second) - Friction Velocity, also called shear velocity, is a form by which a shear stress may be re-written in units of velocity.
Straight Line Distance over which Wind Blows - (Measured in Meter) - Straight Line Distance over which Wind Blows is defined as total stretch of wind motion in a straight line influencing other parameters of the wave.
Dimensionless Fetch - Dimensionless Fetch for the empirical prediction methods is the distance over water that the wind blows in a single direction.

STEP 1: Convert Input(s) to Base Unit

Straight Line Distance over which Wind Blows: 15 Meter --> 15 Meter No Conversion Required
Dimensionless Fetch: 4.3 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_f = sqrt([g]*X/X') --> sqrt([g]*15/4.3)

Evaluating ... ...

V_f = 5.84886691471489

STEP 3: Convert Result to Output's Unit

5.84886691471489 Meter per Second --> No Conversion Required

FINAL ANSWER

5.84886691471489 ≈ 5.848867 Meter per Second <-- Friction Velocity

(Calculation completed in 00.006 seconds)

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Friction Velocity given Dimensionless Fetch Formula

LaTeX Go

Friction Velocity = sqrt([g]*Straight Line Distance over which Wind Blows/Dimensionless Fetch)
V_f = sqrt([g]*X/X')

What is Geostrophic wind?

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How to Calculate Friction Velocity given Dimensionless Fetch?

Friction Velocity given Dimensionless Fetch calculator uses Friction Velocity = sqrt([g]*Straight Line Distance over which Wind Blows/Dimensionless Fetch) to calculate the Friction Velocity, The Friction Velocity given Dimensionless Fetch formula is defined as the form by which shear stress may be re-written in units of velocity. It is useful as a method in fluid mechanics to compare true velocities, such as the velocity of flow in stream, to velocity that relates shear between layers of flow. Friction Velocity is denoted by V_f symbol.

How to calculate Friction Velocity given Dimensionless Fetch using this online calculator? To use this online calculator for Friction Velocity given Dimensionless Fetch, enter Straight Line Distance over which Wind Blows (X) & Dimensionless Fetch (X') and hit the calculate button. Here is how the Friction Velocity given Dimensionless Fetch calculation can be explained with given input values -> 5.848867 = sqrt([g]*15/4.3).

FAQ

What is Friction Velocity given Dimensionless Fetch?

The Friction Velocity given Dimensionless Fetch formula is defined as the form by which shear stress may be re-written in units of velocity. It is useful as a method in fluid mechanics to compare true velocities, such as the velocity of flow in stream, to velocity that relates shear between layers of flow and is represented as V_f = sqrt([g]*X/X') or Friction Velocity = sqrt([g]*Straight Line Distance over which Wind Blows/Dimensionless Fetch). Straight Line Distance over which Wind Blows is defined as total stretch of wind motion in a straight line influencing other parameters of the wave & Dimensionless Fetch for the empirical prediction methods is the distance over water that the wind blows in a single direction.

How to calculate Friction Velocity given Dimensionless Fetch?

The Friction Velocity given Dimensionless Fetch formula is defined as the form by which shear stress may be re-written in units of velocity. It is useful as a method in fluid mechanics to compare true velocities, such as the velocity of flow in stream, to velocity that relates shear between layers of flow is calculated using Friction Velocity = sqrt([g]*Straight Line Distance over which Wind Blows/Dimensionless Fetch). To calculate Friction Velocity given Dimensionless Fetch, you need Straight Line Distance over which Wind Blows (X) & Dimensionless Fetch (X'). With our tool, you need to enter the respective value for Straight Line Distance over which Wind Blows & Dimensionless Fetch 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 Friction Velocity?

In this formula, Friction Velocity uses Straight Line Distance over which Wind Blows & Dimensionless Fetch. We can use 2 other way(s) to calculate the same, which is/are as follows -

Friction Velocity = sqrt(([g]*Characteristic Wave Height)/Dimensionless Wave Height)
Friction Velocity = (Dimensionless Wave Frequency*[g])/Frequency at Spectral Peak

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