Balcony spill plume is one of the main plume forms in an atrium fire, its thermal behavior which is important to the designers for the smoke control system design is still not well understood now. The fire-induced aer...Balcony spill plume is one of the main plume forms in an atrium fire, its thermal behavior which is important to the designers for the smoke control system design is still not well understood now. The fire-induced aerodynamics of balcony spill plume would be studied by the numerical method in this paper. Some uncertainties relating to the available calculation methods for the smoke production rate would be reexamined. Numerical results indicated that using an entrainment coefficient 0.11 would be better than 0.16 in describing the entrainment behavior, end effect should not be ignored for the plume being not two-dimensional （2-D）. Suitable empirical spill plume equations would be recommended for the smoke management system design.展开更多
基金the research grant of Beijing Municipal Bureau of Personnel with account number 38004016200701Natural Science Foundation of Beijing with account number 8082004
文摘Balcony spill plume is one of the main plume forms in an atrium fire, its thermal behavior which is important to the designers for the smoke control system design is still not well understood now. The fire-induced aerodynamics of balcony spill plume would be studied by the numerical method in this paper. Some uncertainties relating to the available calculation methods for the smoke production rate would be reexamined. Numerical results indicated that using an entrainment coefficient 0.11 would be better than 0.16 in describing the entrainment behavior, end effect should not be ignored for the plume being not two-dimensional （2-D）. Suitable empirical spill plume equations would be recommended for the smoke management system design.
