TY - EJOU AU - Abhale, P. B. AU - Viswanathan, N. N. AU - Ballal, N. B. TI - Efficient Simulation of Gas Flow in Blast Furnace T2 - Computers, Materials \& Continua PY - 2009 VL - 10 IS - 2 SN - 1546-2226 AB - Simulation of gas flow in a multilayered non-isothermal packed bed is useful for blast furnace operators in deciding appropriate charging strategy. While using an anisotropic form of Ergun equation to simulate gas flow through such systems, a new solution methodology for non-isothermal gas with varying density flowing through a layered burden has been proposed. This involves handling non-linearity due to gas density variation with pressure and temperature by solving for the square of pressure instead of pressure directly and handling the non-linearity due to |v| term in the Ergun equation by solving linearized form of Ergun equation and updating |v| iteratively. The proposed scheme is capable of predicting the effect of layer structure on gas flow with economy in number of grid points as well as computation time. KW - porous bed KW - layer structure KW - Ergun equation KW - gas flow KW - blast furnace DO - 10.3970/cmc.2009.010.195