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Application of Quasi streamline Numerical Simulation Method for a Boiler Furnace with Tangential Firing

Zhang Ze, Wu Shaohua, Qin Yukun (Harbin Institute of Technology) //Journal of Engineering for Thermal Energy & Power, 2000, 15(1).-47~49  
A numerical simulation method incorporating a composite coordinates grid system, strong non uniform staggered grid arrangement and a staggered calculation mode was described in this paper. This method has been employed for the first time to perform a detailed computation of the three dimensional flow field characteristics of a large sized boiler furnace. The latter features a tangential firing mode with the use of burner nozzles of a sophisticated construction. Because of this, the false diffusion problem in the calculation domain caused by a relatively large included angle between a resultant speed direction and grid line one has been solved relatively well. Furthermore, a comparison with industrial test results shows that the numerical simulation method can quite accurately reflect the flow field characteristics in a boiler furnace combustion zone. A quasi streamline numerical simulation is thus effectively realized.
【CateGory Index】: TK224.11
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