doi:10.3850/978-981-08-7724-8_16-03

ABSTRACT

This paper describes CFD simulations of smoke movement in a closed car park under the effect of forced mechanical ventilation. We discuss the effect of the imposed ventilation flow rate, the distance of the fire source from a wall and the presence of neighbouring cars on the local flow field in the region of the fire. The CFD packages OpenFoam and the Fire Dynamics Simulator (FDS 5) are used. We compare results, obtained by the use of the standard k-e turbulence model, adopted in OpenFoam with LES results. We compare results obtained with a combustion model and the use of a volumetric heat source. The sensitivity of the results to the mesh cell size is mentioned.

Keywords: Smoke management, CFD, Performance-based design, Car park safety.

© 2011 CPD Unit, University of Leeds