Enter the shear stress, distance between layers, and shear velocity into the calculator to determine the dynamic viscosity.

## Dynamic Viscosity Formula

The following formula is used to calculate a dynamic viscosity.

u = t * (y/v)

- Where u is the dynamic viscosity
- t is the shear stress
- y is the distance between layers
- v is the shear velocity

## Dynamic Viscosity Definition

A dynamic viscosity is defined as the resistance to movement of a fluid due to internal attractions and frictions within the fluid.

## Dynamic Viscosity Example

How to calculate dynamic viscosity?

**First, determine the shear stress.**Calculate the shear stress acting on the fluid due to the movement and the walls of the container.

**Next, determine the distance between layers.**This will be the distance between the surfaces containing the fluid.

**Next, determine the shear rate.**Calculate the rate of the shear that is being applied to the fluid.

**Finally, calculate the dynamic viscosity.**Using the formula, calculate the dynamic viscosity.

## FAQ

**What is dynamic viscosity?**

Dynamic viscosity is the resistance to movement of a fluid due to internal fluid frictions caused by a moving fluid against a stationary surface.