Darcy - Weisbach Friction Term given Inlet Impedance Calculator

✖Hydraulic Radius is the ratio of the cross-sectional area of a channel or pipe in which a fluid is flowing to the wet perimeter of the conduit.ⓘ Hydraulic Radius [r_H]			+10% -10%
✖Inlet Impedance is measure of opposition to airflow at an inlet, influences performance and efficiency of fluid systems.ⓘ Inlet Impedance [Z]			+10% -10%
✖Entrance Energy Loss Coefficient [dimensionless] The loss coefficient (ζ) is a dimensionless number (characteristic coefficient) to calculate the head loss.ⓘ Entrance Energy Loss Coefficient [K_en]			+10% -10%
✖Exit Energy Loss Coefficient [dimensionless] is a dimensionless number (characteristic coefficient) to calculate the head loss.ⓘ Exit Energy Loss Coefficient [K_ex]			+10% -10%
✖Inlet Length is the length of a narrow water passage between peninsulas or through a barrier island leading to a bay or lagoon.ⓘ Inlet Length [L]			+10% -10%

✖Dimensionless Parameter is a numerical value without units used to express ratios, similarities, or relationships between physical quantities.ⓘ Darcy - Weisbach Friction Term given Inlet Impedance [f]

⎘ Copy

👎

Formula

✖

Darcy - Weisbach Friction Term given Inlet Impedance

Formula

f = \frac{4 \cdot r H \cdot (Z - K en - K ex)}{L}

Example

0.02999 = \frac{4 \cdot 0.33 m \cdot (2.246 - 1.01 - 0.1)}{50 m}

Calculator

LaTeX

Reset

👍

Download Inlet Currents and Tidal Elevations Formulas PDF PDF Image

Darcy - Weisbach Friction Term given Inlet Impedance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Dimensionless Parameter = (4*Hydraulic Radius*(Inlet Impedance-Entrance Energy Loss Coefficient-Exit Energy Loss Coefficient))/Inlet Length
f = (4*r_H*(Z-K_en-K_ex))/L
This formula uses 6 Variables

Variables Used

Dimensionless Parameter - Dimensionless Parameter is a numerical value without units used to express ratios, similarities, or relationships between physical quantities.
Hydraulic Radius - (Measured in Meter) - Hydraulic Radius is the ratio of the cross-sectional area of a channel or pipe in which a fluid is flowing to the wet perimeter of the conduit.
Inlet Impedance - Inlet Impedance is measure of opposition to airflow at an inlet, influences performance and efficiency of fluid systems.
Entrance Energy Loss Coefficient - Entrance Energy Loss Coefficient [dimensionless] The loss coefficient (ζ) is a dimensionless number (characteristic coefficient) to calculate the head loss.
Exit Energy Loss Coefficient - Exit Energy Loss Coefficient [dimensionless] is a dimensionless number (characteristic coefficient) to calculate the head loss.
Inlet Length - (Measured in Meter) - Inlet Length is the length of a narrow water passage between peninsulas or through a barrier island leading to a bay or lagoon.

STEP 1: Convert Input(s) to Base Unit

Hydraulic Radius: 0.33 Meter --> 0.33 Meter No Conversion Required
Inlet Impedance: 2.246 --> No Conversion Required
Entrance Energy Loss Coefficient: 1.01 --> No Conversion Required
Exit Energy Loss Coefficient: 0.1 --> No Conversion Required
Inlet Length: 50 Meter --> 50 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f = (4*r_H*(Z-K_en-K_ex))/L --> (4*0.33*(2.246-1.01-0.1))/50

Evaluating ... ...

f = 0.0299904

STEP 3: Convert Result to Output's Unit

0.0299904 --> No Conversion Required

FINAL ANSWER

0.0299904 ≈ 0.02999 <-- Dimensionless Parameter

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Civil » Coastal and Ocean Engineering » Hydrodynamics of Tidal Inlets 1 » Inlet Hydrodynamics » Inlet Currents and Tidal Elevations » Darcy - Weisbach Friction Term given Inlet Impedance

Credits

Created by Mithila Muthamma PA

Coorg Institute of Technology (CIT), Coorg

Mithila Muthamma PA has created this Calculator and 2000+ more calculators!

Verified by M Naveen

National Institute of Technology (NIT), Warangal

M Naveen has verified this Calculator and 900+ more calculators!

< Inlet Currents and Tidal Elevations Calculators

Change of Bay Elevation with Time for Flow through Inlet into Bay

Go Change of Bay Elevation with Time = (Average Area over the Channel Length*Average Velocity in Channel for Flow)/Surface Area of Bay

Average Area over Channel Length for Flow through Inlet into Bay

Go Average Area over the Channel Length = (Surface Area of Bay*Change of Bay Elevation with Time)/Average Velocity in Channel for Flow

Average Velocity in Channel for Flow through Inlet into Bay

Go Average Velocity in Channel for Flow = (Surface Area of Bay*Change of Bay Elevation with Time)/Average Area over the Channel Length

Surface Area of Bay for Flow through Inlet into Bay

Go Surface Area of Bay = (Average Velocity in Channel for Flow*Average Area over the Channel Length)/Change of Bay Elevation with Time

Darcy - Weisbach Friction Term given Inlet Impedance Formula

Dimensionless Parameter = (4*Hydraulic Radius*(Inlet Impedance-Entrance Energy Loss Coefficient-Exit Energy Loss Coefficient))/Inlet Length
f = (4*r_H*(Z-K_en-K_ex))/L

What is Inlet flow patterns?

An Inlet has a "gorge" where flows converge before they expand again on the opposite side. Shoal (shallow) areas that extend bayward and oceanward from the gorge depend on inlet hydraulics, wave conditions, and general geomorphology. All these interact to determine flow patterns in and around the inlet and locations where flow channels occur.

How to Calculate Darcy - Weisbach Friction Term given Inlet Impedance?

Darcy - Weisbach Friction Term given Inlet Impedance calculator uses Dimensionless Parameter = (4*Hydraulic Radius*(Inlet Impedance-Entrance Energy Loss Coefficient-Exit Energy Loss Coefficient))/Inlet Length to calculate the Dimensionless Parameter, The Darcy - Weisbach Friction Term given Inlet Impedance is an empirical equation, which relates the head loss, or pressure loss, due to friction along a given length of pipe to the average velocity of the fluid flow for an incompressible fluid. Dimensionless Parameter is denoted by f symbol.

How to calculate Darcy - Weisbach Friction Term given Inlet Impedance using this online calculator? To use this online calculator for Darcy - Weisbach Friction Term given Inlet Impedance, enter Hydraulic Radius (r_H), Inlet Impedance (Z), Entrance Energy Loss Coefficient (K_en), Exit Energy Loss Coefficient (K_ex) & Inlet Length (L) and hit the calculate button. Here is how the Darcy - Weisbach Friction Term given Inlet Impedance calculation can be explained with given input values -> 0.02999 = (4*0.33*(2.246-1.01-0.1))/50.

FAQ

What is Darcy - Weisbach Friction Term given Inlet Impedance?

The Darcy - Weisbach Friction Term given Inlet Impedance is an empirical equation, which relates the head loss, or pressure loss, due to friction along a given length of pipe to the average velocity of the fluid flow for an incompressible fluid and is represented as f = (4*r_H*(Z-K_en-K_ex))/L or Dimensionless Parameter = (4*Hydraulic Radius*(Inlet Impedance-Entrance Energy Loss Coefficient-Exit Energy Loss Coefficient))/Inlet Length. Hydraulic Radius is the ratio of the cross-sectional area of a channel or pipe in which a fluid is flowing to the wet perimeter of the conduit, Inlet Impedance is measure of opposition to airflow at an inlet, influences performance and efficiency of fluid systems, Entrance Energy Loss Coefficient [dimensionless] The loss coefficient (ζ) is a dimensionless number (characteristic coefficient) to calculate the head loss, Exit Energy Loss Coefficient [dimensionless] is a dimensionless number (characteristic coefficient) to calculate the head loss & Inlet Length is the length of a narrow water passage between peninsulas or through a barrier island leading to a bay or lagoon.

How to calculate Darcy - Weisbach Friction Term given Inlet Impedance?

The Darcy - Weisbach Friction Term given Inlet Impedance is an empirical equation, which relates the head loss, or pressure loss, due to friction along a given length of pipe to the average velocity of the fluid flow for an incompressible fluid is calculated using Dimensionless Parameter = (4*Hydraulic Radius*(Inlet Impedance-Entrance Energy Loss Coefficient-Exit Energy Loss Coefficient))/Inlet Length. To calculate Darcy - Weisbach Friction Term given Inlet Impedance, you need Hydraulic Radius (r_H), Inlet Impedance (Z), Entrance Energy Loss Coefficient (K_en), Exit Energy Loss Coefficient (K_ex) & Inlet Length (L). With our tool, you need to enter the respective value for Hydraulic Radius, Inlet Impedance, Entrance Energy Loss Coefficient, Exit Energy Loss Coefficient & Inlet Length 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 Dimensionless Parameter?

In this formula, Dimensionless Parameter uses Hydraulic Radius, Inlet Impedance, Entrance Energy Loss Coefficient, Exit Energy Loss Coefficient & Inlet Length. We can use 1 other way(s) to calculate the same, which is/are as follows -

Dimensionless Parameter = (116*Manning’s Roughness Coefficient^2)/Hydraulic Radius of the Channel^(1/3)

Home

FREE PDFs

🔍 Search