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

fYear

2011

fDate

15-17 July 2011

Firstpage

7491

Lastpage

7495

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988783

Filename

5988783