friction factor calculator
The Moody friction factor (f) is used in the Darcy-Weisbach major loss equation. Note that for laminar flow, f is independent of e. However, you must still enter an e for the program to run even though e is not used to compute f. Equations can be found in Discussion and References for Closed Conduit Flow.
Note that the Darcy friction factor is directly related to the Fanning friction factor (which is 1/4 of the Darcy factor). In pure laminar flow, the Darcy factor can be taken as 64/Re (Reynolds number), but when the Reynolds number is above ~2300, turbulent flow means that an approach such as the Colebrook equation must be used.
Friction Factor Calculations The Darcy-Weisbach equation, for calculating the friction loss in a pipe, uses a dimensionless value known as the friction factor (also known as the Darcy-Weisbach friction factor or the Moody friction factor) and it is four times larger than the Fanning friction factor.
Colebrook equation calculator solving for Darcy friction factor given absolute roughness, Math Geometry Physics Force Fluid Mechanics Finance Loan Calculator. Colebrook Equations Formulas Calculator Fluid Mechanics – Turbulent Pipe Flow. Solving for friction factor. Notes: 1) Calculation uses a iterative process to solve for friction factor
friction factor: Try the Free Moody Chart Calculator app for Android at the Google play, here! Learn more about the Moody Chart Calculator,
230 rows · Compute the friction factor of a circular pipe based on Churchill’s equation with this online …
|LIQUID||TEMPERATURE (C)||KINEMATIC VISCOSITY (CST)|
|Acetic acid – vinegar – 10% CH3COOH||15||1.35|
|Acetic acid – 50%||15||2.27|
|Acetic acid – 80%||15||2.85|
The friction factor (also sometimes called the Moody friction factor) can be determined for known values of Reynolds number and ε/D from empirically derived charts and/or equations. A commonly used chart is the Moody friction factor chart, shown in the diagram on the left.
The Colebrook equation is generic and can be used to calculate friction coefficients for different kinds of fluid flows – like air ventilation ducts, pipes and tubes with water or oil, compressed air and much more. Colebrook Online Calculator. The friction coefficient can be calculated with the online Colebrook calculator below.
The calculator above first computes the Reynolds Number for the flow. It then computes the friction factor f by direct substitution (if laminar; the calculator uses the condition that R < 3000 for this determination) or by iteration using Newton-Raphson (if turbulent). The pressure drop is then calculated using the viscous head equation above.
• Be able to calculate a value of the Moody friction factor for given Re and ε/D, using the Moody friction factor equations. • Be able to use the Darcy Weisbach equation and the Moody friction factor equations to calculate the frictional head loss and frictional pressure drop for a given flow rate of a specified fluid through a pipe
Use this friction calculator to calculate the friction force between any object and the ground. It is based on a simple principle: the friction is proportional to …
Units in Darcy-Weisbach calculator: ft=foot, m=meter, s=second. Darcy-Weisbach Friction Loss Equation: D is called the “duct diameter” to keep the terminology general to include circular pipes and non-circular pipes, also known as ducts. For rectangular pipes (ducts), D=4A/P is …