In the world of engineering, understanding turbulence is crucial. Whether it’s optimizing pipe flows, designing efficient jets, crafting aerodynamic marvels in automotive and aircraft sectors, or exploring climate modeling complexities, turbulence plays a pivotal role.So, what exactly is turbulence? Simply put, all flows, when they exceed a critical Reynolds number (UL/ν), transition from orderly laminar…
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…
Large Eddy Simulation (LES) is another important turbulent modeling approach. LES is a more computationally intensive technique compared to Reynolds-Averaged Navier-Stokes (RANS) models like 𝑘−𝜀 or 𝑘−𝜔.In LES, the large turbulent structures in the flow are resolved directly, while the smaller scales of turbulence are modeled. This makes LES particularly suitable for capturing the unsteady,…
