On the Fluid Dynamics of the Make-Up Inlet Air and the Prediction of Anomalous Fire Dynamics in a Large-Scale Facility
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AutorGutiérrez Montes, Cándido; Sanmiguel Rojas, Enrique; Burgos Olmos, Manuel Antonio; Viedma Robles, Antonio
Grupo de investigaciónMecánica de Fluidos e Ingeniería Térmica
Área de conocimientoMecánica de Fluidos
PatrocinadoresThis research was supported by the Spanish MCyT and Junta de Andalucia under Projects # DPI2008-06624-C03-02 and # P07-TEP02693, respectively. CGM wants to acknowledge the research stay grants IAC-2010-3 and A-13-2010 from the Junta de Andalucia and the University of Jaén, respectively
Fecha de publicación2012-07
Cita bibliográficaFire Safety Journal, Volume 51, July 2012, Pages 27-41.
Revisión por paresSI
Palabras claveMake-up air
The present paper is focused on the fluid dynamics of the make-up air at the vents in case of an atrium fire, its influence on the fire-induced conditions and the necessity of properly model it to obtain an accurate numerical prediction. For this aim, experimental data from two full-scale atrium fire tests conducted in a 20 m cubic facility, with venting conditions involving mechanical smoke exhaust and make-up air velocities larger than 1 m/s, and with different fire powers, are presented. Subsequent numerical simulations of these tests have been performed with the code Fire Dynamics Simulator v5.5.3. Two different approaches have been followed to simulate the make-up air inlet fluid dynamics, involving one domain which only considers the inside of the building and another which includes part of the outside. In the former simulations, anomalous phenomena around the fire appear, while the inclusion of the exterior domain provides with a completely different fluid dynamics inside the ...
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