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Experimentally visualizing high-speed flow was a serious challenge for decades. Before the advent of modern laser diagnostics and velocimetry, the only real techniques for visualizing high speed flow fields were … Continue Reading Creating synthetic Schlieren and Shadowgraph images in Paraview
The most common complaint I hear, and the most common problem I observe with OpenFOAM is its supposed “steep learning curve”. I would argue however, that for those who want … Continue Reading Tips for tackling the OpenFOAM learning curve
Here I will present something I’ve been experimenting with regarding a simplified workflow for meshing airfoils in OpenFOAM. If you’re like me, (who knows if you are) I simulate a … Continue Reading Automatic Airfoil C-Grid Generation for OpenFOAM – Rev 1
Here, I’ll cover the basic workflow that I implement when I am using cfMesh. First, when do I use cfMesh? I love cfMesh. I find it robust, easy to use … Continue Reading A cfMesh workflow to speed up and improve your meshing
When working on practical engineering applications, you often encounter problems where there are significant changes in temperature locally in the flow field. For instance, if you are doing a heat … Continue Reading Sutherland’s Law
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: fixedValue BC … Continue Reading BASIC kOmega-SST Boundary Conditions
This post is a simple demonstration of the timeVaryingFixedUniformValue boundary condition. This boundary condition allows a Dirichlet-type boundary condition to be varied in time. To demonstrate, we will modify the … Continue Reading Time-Varying Cylinder Motion in Cross-flow: timeVaryingFixedUniformValue
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 … Continue Reading Turbulent Zero Pressure Gradient Flat Plate – simpleFOAM, komegaSST
In this post I will go over the set up and solution of a pressure driven nozzle flow with a shock located in the diverging section. This refers to the … Continue Reading Pressure Driven Nozzle Flow with Shock – rhoCentralFoam
In this post I will simulate inviscid Mach 1.5 flow over a 23 degree wedge of a finite height.