Turbulence Calculator

The Turbulence Calculator allows you to estimate the value of main turbulent parameters for k-epsilon, k-omega and LES models.

Input Values

Turbulence Model

Ref. Length L

Ref. velocity U∞

Kinematic viscosity ν

Turbulence intensity I

Turbulence intensity value I

Turbulent viscosity ratio νt/ν

Output Values

Reynolds number Re

Turbulence length scale l

Turbulence intensity I

Turbulence kinetic energy k

Turbulence dissipation rate ε

Specific dissipation rate ω

Turbulent viscosity νt

How to Use

Choose the turbulence model and fill in the required parameters in the orange area.

The parameters are unit-agnostic, check that all the values are using the same system of units.
The required input parameters could be reference length (e.g. a pipe’s diameter or a vehicle’s length), a reference free-stream velocity, kinematic viscosity of the fluid, turbulent viscosity ratio (choose a value between 1 and 10) and turbulence intensity level (choose a value between 0 and 1).

Output values are shown in the green area. These values will change according to the selected turbulence model and they could be Reynolds number, turbulence length scale, turbulent intensity, turbulent dissipation rate, specific dissipation rate and turbulent viscosity.

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