Unsteady flow

Incompressible, viscous, two-dimensional unsteady flows over bluff bodies are simulated via the use of vortex methods. The vorticity domain is discretized into a number of Lagrangian point vortices. The vorticity transport equation is split into convection and diffusion parts, a…

A new computer model is presented to predict the spatial and temporal distribution of chlorine residuals in a pipe network under slowly varying, unsteady flow conditions. Unlike the other available models which use steady-state or extended-period simulation, the model presented …

Voluntary coughs are used as a diagnostic tool to detect lung diseases. Understanding the mechanics of a cough is therefore crucial to accurately interpreting the test results. A cough is characterised by a dynamic compression of the airways, resulting in large flow velocities a…