Analytic solutions for the decay of turbulent swirling flow in a cylinder.

摘要

A simple analytic model of the decay of turbulent swirling flow in constant volume combustion bombs and engine cylinders has been developed. The model is based on a simplified version of the Navier-Stokes equation with a specified eddy viscosity. The analytic solutions are compared to experimental results. The model provides adequate parametric fits to the data along with some insight into the processes affecting the swirling in-cylinder flows. 17 refs., 14 figs.