Properties - Input values

* Kinematic viscosity at room temperature:
Air: $1.5^{-5}$ - Water: $1.0^{-6}$

Choose turbulence variables to compute

Compute $\omega$ from $\kappa$ and $\epsilon$ $( \beta^* = C_{\mu} = 0.09)$
Compute $\epsilon$ from $\kappa$ and $\omega$ $( \beta = C_{\mu} = 0.09)$
Compute turbulence variables $( \kappa$, $\epsilon$, $\omega )$ from $Tu$, $Tu_L$ and $U_{\infty}$
Compute turbulence variables $( \kappa$, $\epsilon$, $\omega )$ from $Tu$, $\mu_t / \mu$, $U_{\infty}$ and kinematic viscosity $\nu$
Compute turbulence intensity $(Tu )$ from $\kappa$ and freestream velocity $( U_{\infty} )$
Compute turbulence length scale $(Tu_L)$ from $\kappa$ and $\epsilon$
Compute turbulence length scale $(Tu_L)$ from $\kappa$ and $\omega$
Compute turbulence eddy viscosity ratio $(\mu_t / \mu )$ from $\kappa$ and $\epsilon$
Compute turbulence eddy viscosity ratio $(\mu_t / \mu)$ from $\kappa$ and $\omega$

Warning. The formulas used to estimate the turbulence quantities values may vary from software to software.

For more information, visit the following links:
 
      NASA Turbulence Modeling Resource
      https://turbmodels.larc.nasa.gov/
  
      CFD-Online Turbulence free-stream boundary conditions
      https://www.cfd-online.com/Wiki/Turbulence_free-stream_boundary_conditions

Choose preset values of turbulence intensity and eddy viscosity ratio

Low turbulence case: external flow around cars, ships, submarines, and aircrafts.

Medium turbulence case: flow in not-so-complex devices like large pipes, fans, ventilation flows, wind tunnels, or low speed flows.

High turbulence case: high-speed flow inside complex geometries like heat-exchangers and rotating machinery (turbines and compressors).