PHYIC CALCULATOR
Viscosity Calculator
A precise tool.
What is the Viscosity Calculator & How does it work?
Viscosity is a measure of a fluid’s resistance to flow under an applied force. It quantifies the internal friction of a moving fluid. The dynamic viscosity (( mu )) can be calculated using the formula:This formula shows that the dynamic viscosity is the ratio of shear stress to the rate of deformation (shear rate). Higher viscosity indicates greater resistance to flow.
( mu = frac{tau}{left(frac{dv}{dy}right)} )
( mu ) = dynamic viscosity, ( tau ) = shear stress, ( frac{dv}{dy} ) = shear rate
Parameters
Result
—
Frequently Asked Questions
What is dynamic viscosity?
Dynamic viscosity measures a fluid’s resistance to flow under an applied force, quantifying internal friction.
How do I calculate shear rate?
Shear rate is calculated as the change in velocity (dv) divided by the change in distance (dy).
What units are used for dynamic viscosity?
Dynamic viscosity is typically measured in Pascal-seconds (Pa·s) or centipoise (cP).
Can I use this calculator for gases?
This calculator is primarily for liquids. Gases have different properties and require a different approach.
What does shear stress represent in fluids?
Shear stress represents the force per unit area that causes fluid layers to slide past each other.
How does temperature affect viscosity?
Temperature generally decreases viscosity for liquids and increases it for gases.
Can I use this calculator for non-Newtonian fluids?
This calculator assumes Newtonian behavior. Non-Newtonian fluids require different models.
Results are for informational purposes only and do not constitute professional advice.