kω-SST (komegaSST) Boundary Conditions Here the basic boundary conditions if you are using the kOmegaSST model in OpenFOAM: At the wall: ω (omega) - specific dissipation rate BC type: fixedValueBC value: $latex \omega_{wall}=10\frac{6\nu_\infty}{\beta_1\left(\Delta y_{wall}\right)^2}&s=3$ Note: The omegaWallFunction actually calculates this BC value for omega at the wall. Therefore, you can use it, even if you aren't … Continue reading BASIC kOmega-SST Boundary Conditions
Tag: RANS
The Ahmed Body
The Ahmed body is a geometric shape first proposed by Ahmed and Ramm in 1984. The shape provides a model to study geometric effects on the wakes of ground vehicles (like cars). Image highlights: In this post, I will use simpleFoam to simulate the Ahmed body at a Reynolds number of 10^6 using the k-omega … Continue reading The Ahmed Body
Validation: Turbulent Zero Pressure Gradient Flat Plate – simpleFOAM, komegaSST
An excellent test case, and case to familiarize yourself with some of the turbulence models available in OpenFOAM is a 2D flat plate with zero pressure gradient. I will solve this problem using the solver simpleFoam and the komegaSST model. Here are the sections of this post: Quick Overview: kω-SST (komegaSST) Boundary Conditions Case set-up … Continue reading Validation: Turbulent Zero Pressure Gradient Flat Plate – simpleFOAM, komegaSST