chapter  4
40 Pages

Simulation of the basic mechanisms of low amplitude air pressure transient propagation – AIRNET applications

Previous chapters have presented the fluid mechanisms that lead to the generally accepted air pressure regimes encountered within building drainage and vent systems, regimes that are predicated on the entrainment of an inflow by the applied appliance discharges and the subsequent interaction of that entrained airflow with the component parts of the drainage network and other system flows. In addition, previous chapters have presented the development of pressure transient theory and practice over the 100 years since the seminal work of Joukowsky, a multidisciplinary endeavour with a full range of international contributors, as well as the development of the Method of Characteristics as the industry standard for surge analysis following the contributions of Streeter and Fox in the 1960s.