Turbulence is a highly complex and challenging phenomenon to study, especially in
the field of fluid dynamics, where many applications rely on accurate predictions
of turbulent flow behavior. Due to its random and chaotic nature, turbulence is difficult
to model precisely, but achieving reliable results is essential for solving numerous
engineering problems. Various turbulence models, each with specific strengths and
limitations, have been developed to address this challenge. This study focuses on
comparing three widely used turbulence models (k−ϵ, k−ω, and the Reynolds Stress Model
(RSM)) to evaluate their accuracy in simulating turbulent flow within a corrugated
channel. The aim of this study is to simulate and achieve better result accuracy while
minimizing computational cost in this geometry, both with and without vortex generators.
The investigation begins with a trapezoidal channel, after which vortex generators
are introduced to assess their impact on flow behavior. Vortex generators are known
to enhance heat transfer by promoting flow separation and modifying the flow direction,
making their effect critical in such simulations. The computational analysis is conducted
using ANSYS Fluent, a commercial software for computational fluid dynamics (CFD) and
heat transfer modeling, which operates on the finite volume method to ensure conservation
of physical properties. Results will be presented through detailed graphical representations
and contour plots, followed by a comprehensive discussion of the comparative performance
of each model.
