Features of the Heat and Mass Transfer in a Fire Within a Building of Complex Geometry

A method of calculating the heat and mass transfer in a fire within a building of complex geometry is proposed. The results of calculation of the three-dimensional temperature, velocity, and visible-range fields in the gas medium of a fire simulated in the atrium, corridors, and floors of a building with the use of the mathematical model developed are presented. The method proposed allowed us to reveal regularities of the heat and mass transfer in a fire within the building considered that substantially differ from the existing views of the dynamics of the hazardous factors of a fire in such buildings. __________ Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 3, pp. 22–29, May–June, 2005.