Cfd Articles and Tutorials

Modeling and Simulation of Axisymmetric Swirling Flows

Modeling and Simulation of Axisymmetric Swirling Flows

Fluid Flow Simulations with Swirl Effects Fluid flows with swirl effects can occur in rotationally symmetric geometries where the azimuthal or angular velocity component is non-zero. In this case one must solve the fully three-dimensional Navier-Stokes equations. However, due to the assumption that azimuthal variations …

CFD Solver Benchmark - OpenFOAM and FEATool

CFD Solver Benchmark - OpenFOAM and FEATool

To evaluate the efficiency of the OpenFOAM CFD solver one can use the now classic DFG flow over a cylinder CFD benchmark [1] for which very accurate reference solutions for drag, lift, and pressure difference have been established [2]. The model problem is set up and solved with identical grids and finite element FEM …

Accurate Computational Fluid Dynamics CFD Simulations

Accurate Computational Fluid Dynamics CFD Simulations

In computational fluid dynamics (CFD) simulations accuracy is often very important, especially for drag and lift values. References [2-3] describe a CFD benchmark problem for time-dependent flow around a cylinder where the Reynolds number varies between 0<=Re<=100. The references contain very accurate reference …