Page History

Problem Specification

The purpose of this tutorial is to illustrate the setup and solution of an unsteady flow past a circular cylinder and to study the vortex shedding phenomenon. Flow past a circular cylinder is one of the classical problems of fluid mechanics. For this problem, we will be looking at Reynolds number of 150.

\large
$$
{Re} = {\rho VD \over \mu}
$$

\gamma _1 = \frac{{\mu _3 }}\mu _2 ^{{3 \mathord{\left/ {\vphantom {3 2 \right. \kern-\nulldelimiterspace} 2}} }} = \frac{{\mu _3 }}{{\sigma ^3 }}
Re = ρVD/μWe know D = 2 m. To obtain Re = 150, we can arbitrarily set ρ, v V and μ. For our case, let's set ρ = 75 kg/m ³ , v V = 1 m/s and μ = 1 kg/ms.

Preliminary Analysis

...