Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fire dynamics simulation of a turbulent buoyant flame using a mixture-fraction-based combustion model
Fire dynamics simulations of a 7.1 cm buoyant turbulent diffusion flame were performed using a mixture fraction-based combustion model. In previous work, good agreement between the measured and the calculated fire flow field was achieved with carefully selected domain and grid sizes using a Lagrangian thermal-element combustion model. The Lagrangian thermal-element model exhibits qualitative as well as quantitative differences in the measured and calculated temperature profiles in the flame zone. The number of Lagrangian thermal elements must be carefully selected and the model is not designed to provide insights into the species distributions in the fire. To address these issues, a mixture-fraction-based combustion model was used. The domain and grid size dependence using this model are documented. Comparisons between the measured and the calculated velocities, mixture fractions and temperatures show that the mixture-fraction-based combustion model captures the qualitative and quantitative fire behavior very well.
Fire dynamics simulation of a turbulent buoyant flame using a mixture-fraction-based combustion model
Fire dynamics simulations of a 7.1 cm buoyant turbulent diffusion flame were performed using a mixture fraction-based combustion model. In previous work, good agreement between the measured and the calculated fire flow field was achieved with carefully selected domain and grid sizes using a Lagrangian thermal-element combustion model. The Lagrangian thermal-element model exhibits qualitative as well as quantitative differences in the measured and calculated temperature profiles in the flame zone. The number of Lagrangian thermal elements must be carefully selected and the model is not designed to provide insights into the species distributions in the fire. To address these issues, a mixture-fraction-based combustion model was used. The domain and grid size dependence using this model are documented. Comparisons between the measured and the calculated velocities, mixture fractions and temperatures show that the mixture-fraction-based combustion model captures the qualitative and quantitative fire behavior very well.
Fire dynamics simulation of a turbulent buoyant flame using a mixture-fraction-based combustion model
Simulation der Dynamik eines Brandes mit einer turbulenten Flamme unter Verwendung eines Verbrennungsmodells auf Basis der Mischungsfraktion
Xin, Y. (Autor:in) / Gore, J.P. (Autor:in) / McGrattan, K.B. (Autor:in) / Rehm, R.G. (Autor:in) / Baum, H.R. (Autor:in)
Combustion and Flame ; 141 ; 329-335
2005
7 Seiten, 9 Bilder, 14 Quellen
Aufsatz (Zeitschrift)
Englisch
A Mixture Fraction Combustion Model for Fire Simulation Using CFD
| British Library Conference Proceedings | 2001
CFD Fire Simulation Using Mixture Fraction Combustion and Finite Volume Radiative Heat Transfer
| Online Contents | 2003
Numerical Simulation of Buoyant Fire Plumes
| British Library Conference Proceedings | 2001
Numerical simulation of turbulent buoyant plume based on dsm
| British Library Online Contents | 2001