通过计算，研究了不同风口直径、风口长度和高炉风口焦炭不同粒度组成对高炉风口回旋区的径向长度、宽度、高度和体积的影响。
Influence of different tuyere diameter, length and coke particle sizes composition on radial length, width, height and volume in BF tuyere rotary region is studied by calculation.
实验结果表明，换热元件的长度对其传热系数的大小及传热系数的径向分布均产生显著影响。
The results show that local heat transfer coefficients and their radial profiles are obviously influenced by the vertical length of the heat probes.
文中分别研究了射流交叉角度和密度比对径向速度分布、回流区长度、回流量的影响。
The results show that the angle of cross jets and density ratios have important influences on the velocity distribution on radial, the length of reflux zone and the quantity of reflux.
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