# 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 …

## 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 [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 …