vertical position

The computation results show that the effect of density to laminar bottom layer in vertical pipeline is obvious and is bigger than that of viscosity, which can not be ignored.

研究结果表明,密度对竖直管道顺序输送过程中层流底层的影响比较明显,并且大于粘度影响,不可忽略。

The correlation of various parameters of soilds on pneumatic coveying in vertical pipeline and the reason of solids choking were presented.

介绍了竖直管道中气力输送物料过程各种不同参数的关系以及物料在管道中发生堵塞的原因,给出了预测堵塞发生的计算方法,为物料气力输送系统的设计提供了一些借鉴。

In gas-liquid screen type WFGD,distribution of falling liquid about upright jet determines directly desulfuration efficiency.

在液幕式湿法脱硫中,竖直射流回落液量分布情况直接决定脱硫效率。

： Numerical analysis was conducted for combined heat and mass transfer by natural convection on a vertical surface with SIMPLE method.

用数值方法研究了竖直平面上因热及物质扩散引起的传热传质复合自然对流，得到了速度、压力、温度和浓度的分布及传热传质速率随浮力比的变化规律。

An experimental study was made for steam condensation in a vertical tube with a spiral wire based on the turbulent-turbulen heat transfer model of steam-1iquid f1ow proposed by the authors,and data correlation was obtained.

本文针对水蒸气在内插螺旋丝的竖直圆管内的凝结换热，在建立了蒸汽-液膜为紊流-紊流条件下的传热模型基础上，提出关联式应有的形式，并由实验研究获得了验证，得出具体的换热规律，对各种影响因素进行了分析。