Title :
Numerical simulation on temperature field in tunnel during seam steady smolder
Author :
Wang, Wen-Cai ; Wang, Rui-Zhi ; Liu, Bing-Lei
Author_Institution :
Min. Eng. Sch., Inner Mongolia Univ. of Sci. & Technol., Baotou, China
Abstract :
Two dimentional mathematical model of tunnel temperature field in condition of diffusion during seam smoldering steady according to heat transfer theory and comservation of mass, momentum and energy. Temperature character of tunnel in condition of diffusion during seam smoldering steady is simulated by COMSOL Multiphysics according to this model. Results show that temperature field in tunnel can be divided into three fields such as isothermal region,one dimention temperature rising region and two dimentional temperature rising region,and temperature field equation of appropriate region is obtained.So that theary direction is provided for prevention and contral of seam smolder.
Keywords :
geotechnical engineering; heat transfer; numerical analysis; temperature; tunnels; COMSOL multiphysics; diffusion; energy; heat transfer theory; isothermal region; mass conservation; momentum; numerical simulation; seam smoldering steady; temperature field; temperature rising region; tunnel; two dimentional mathematical model; Coal; Combustion; Materials; Mathematical model; Numerical models; Numerical simulation; Safety; COMSOL-Multiphysics; numerical simulation; steady smolder; temperature field; tunnel;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5988783
