FEMTC 2014

Approach to Define the Aerodynamic Free Area for Natural Smoke Vents in a CFD Simulation Environment

Lajos Gábor Takács - Budapest University of Technology

Abstract

Provided naturally or mechanically, smoke and heat exhaust from buildings is one of the key application fields of CFD simulations. In an FDS/PyroSim environment, natural smoke vents may be modelled by simple openings called “Hole” elements, whose sizes are essential in the findings of simulation. In our paper, we propose a method to model natural flat roof ventilators in CFD simulation using a proper size.

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