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PSG College of Technology (PSGCT), Coimbatore
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Average height of irregularities for turbulent flow in pipes Solution

STEP 0: Pre-Calculation Summary
Formula Used
Average height irregularities = (Roughness reynold number*Kinematic viscosity)/Shear Velocity
k = (Re*ν)/V*
This formula uses 3 Variables
Variables Used
Roughness reynold number- The Roughness reynold number is considered in a turbulent flow.
Kinematic viscosity - The kinematic viscosity is an atmospheric variable defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid. (Measured in Stokes)
Shear Velocity - Shear velocity, also called friction velocity, is a form by which a shear stress may be re-written in units of velocity. (Measured in Meter per Second)
STEP 1: Convert Input(s) to Base Unit
Roughness reynold number: 10 --> No Conversion Required
Kinematic viscosity: 7.25 Stokes --> 0.000725 Meter² per Second (Check conversion here)
Shear Velocity: 10 Meter per Second --> 10 Meter per Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
k = (Re*ν)/V* --> (10*0.000725)/10
Evaluating ... ...
k = 0.000725
STEP 3: Convert Result to Output's Unit
0.000725 Meter --> No Conversion Required
FINAL ANSWER
0.000725 Meter <-- Average height irregularities
(Calculation completed in 00.016 seconds)

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Average height of irregularities for turbulent flow in pipes Formula

Average height irregularities = (Roughness reynold number*Kinematic viscosity)/Shear Velocity
k = (Re*ν)/V*

What is turbulent flow?

The turbulence or turbulent flow is fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to a laminar flow, which occurs when a fluid flows in parallel layers, with no disruption between those layers.

What is the difference between laminar flow and turbulent flow?

Laminar flow or streamline flow in pipes (or tubes) occurs when a fluid flows in parallel layers, with no disruption between the layers. Turbulent flow is a flow regime characterized by chaotic property changes. This includes a rapid variation of pressure and flows velocity in space and time.

How to Calculate Average height of irregularities for turbulent flow in pipes?

Average height of irregularities for turbulent flow in pipes calculator uses Average height irregularities = (Roughness reynold number*Kinematic viscosity)/Shear Velocity to calculate the Average height irregularities, The Average height of irregularities for turbulent flow in pipes formula is known while considering the shear velocity, roughness reynold number, and the kinematic viscosity. Average height irregularities is denoted by k symbol.

How to calculate Average height of irregularities for turbulent flow in pipes using this online calculator? To use this online calculator for Average height of irregularities for turbulent flow in pipes, enter Roughness reynold number (Re), Kinematic viscosity (ν) & Shear Velocity (V*) and hit the calculate button. Here is how the Average height of irregularities for turbulent flow in pipes calculation can be explained with given input values -> 0.000725 = (10*0.000725)/10.

FAQ

What is Average height of irregularities for turbulent flow in pipes?
The Average height of irregularities for turbulent flow in pipes formula is known while considering the shear velocity, roughness reynold number, and the kinematic viscosity and is represented as k = (Re*ν)/V* or Average height irregularities = (Roughness reynold number*Kinematic viscosity)/Shear Velocity. The Roughness reynold number is considered in a turbulent flow, The kinematic viscosity is an atmospheric variable defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid & Shear velocity, also called friction velocity, is a form by which a shear stress may be re-written in units of velocity.
How to calculate Average height of irregularities for turbulent flow in pipes?
The Average height of irregularities for turbulent flow in pipes formula is known while considering the shear velocity, roughness reynold number, and the kinematic viscosity is calculated using Average height irregularities = (Roughness reynold number*Kinematic viscosity)/Shear Velocity. To calculate Average height of irregularities for turbulent flow in pipes, you need Roughness reynold number (Re), Kinematic viscosity (ν) & Shear Velocity (V*). With our tool, you need to enter the respective value for Roughness reynold number, Kinematic viscosity & Shear Velocity 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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