Cfd Articles and Tutorials

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 …

To evaluate the efficiency of the FeatFlow CFD solver one can use the now classic DFG flow over a cylinder CFD benchmark [1][2] for which very accurate reference solutions for drag, lift, and pressure difference have been established [3][4]. The model problem is set up and solved with identical grids and finite element …

Continually making physics simulation easier, better, and more approachable, this post introduces FeatFlow, a very fast and efficient finite element FEM based computational fluid dynamics (CFD) solver for the incompressible Navier-Stokes equations. The FeatFlow solver interface is now available in FEATool Multiphysics, …

In computational fluid dynamics (CFD) simulations accuracy is often very important, especially for drag and lift values. References [1-3] 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 …