涡量修正方法在切向炉内流场数值模拟中的应用  

The Application of Vorticity Tuning Method to the Numerical Study on the Flow Field in Tangentially Fired Furnace

作　　者：张文宏[1] 沈滨[1] 何伯述[1] 许晋源[1] 

机构地区：[1]西安交通大学

出　　处：《应用力学学报》1998年第4期87-91,共5页Chinese Journal of Applied Mechanics

摘　　要：涡量是流体运动的一个基本物理量，旋涡是流体运动中常见的一种基本形态，又是湍流的一种基本结构，它在理论上和工程实践中占有相当重要的位置。本文在吴镇远（Ｊ．Ｃ．Ｗｕ）方法的基础上，提出了一种新的数值计算方法——涡量修正方法。对炉内速度场及涡量场进行了计算，其速度场的计算结果与实验基本符合，在网格划分基本相同的条件下与ＳＩＭＰＬＥ算法所得结果相比，涡量修正算法更接近于实验结果，为流场的数值模拟提供了一条新的途径。Vorticity is a basic parameter of the fluid flow. Vortices occur as basic phenomena and are looked as the basic structure of turbulence. This paper proposed a new numerical method, called as the method of vorticity tuning, on the basis of J. C. Wus research. The velocity and vorticity fields in a tangentially fired furnace were computed by the new method. The computed velocity field was basically consistent with the experiment. In comparison with the SIMPLE algorithm, the new method is superior under the same condition of the net.

关 键 词：切向燃烧煤粉锅炉 数值模拟 涡量修正方法 

分 类 号：TK229.63[动力工程及工程热物理—动力机械及工程]