Common turbluent models

In a previous discussion, we delved into the complexities of turbulence. Now, let’s explore the turbulent models commonly employed in industrial simulations.
One of the main turbulent models often used is the 𝑘 − 𝜀 (k-epsilon) model. This model is a two-equation turbulence model that solves for the turbulent kinetic energy (𝑘) and its dissipation rate (𝜀). It’s widely used for a wide range of turbulent flows, particularly in industrial applications where there’s a need for computational efficiency and accuracy.
Other popular turbulent models in Fluent include the 𝑘−𝜔SST (Shear Stress Transport) model, which is known for its robustness and ability to handle a wide range of flow regimes, especially near-wall flows where accurate prediction of boundary layer behavior is crucial.
For more intricate turbulent flows characterized by turbulence anisotropy, we turn to the Reynolds Stress Model (RSM). This model is adept at capturing complexities arising from directional variations of turbulence. However, it comes with a higher computational cost due to solving seven equations in three dimensions.
Stay tuned as we delve deeper into exploring the Large Eddy Simulation (LES) model in our upcoming posts 🙂.