Modelling of Blast Wave Propagation Through the Darlington NGS Powerhouse In the Event of a Nearby Accidental Explosion

Abstract

The propagation of a blast wave inside the Darlington Nuclear Generating Station (NGS) powerhouse following an accidental explosion at a nearby railway line has been studied numeric ally using two different computer codes. Pressurization of the building interior at various locations in the powerhouse are computed with an Ontario Hydro in-house finite-difference containment code called PATRIC. and in one benchmark case with an Institute for Aerospace Studies code based on the random-choice method.both of which solve unsteady one-dimensional flow problems. Some pertinent results of both codes are presented, and they are also shown to be in good agreement.