Using numerical computation of fluid flow, the coefficients of vertical force, lateral force and rolling moment caused by cross-wind were calculated, which were related to train speed and wind speed.
采用流场数值模拟计算方法，计算了横风作用时的垂向气动升力系数、气动横向力系数和侧滚力矩系数，得出各系数与车辆速度和风速之间的变化关系。
By investigating the direction of force acted upon particles and the direction of fluid flow in the classifier, the concepts of cross flow classification and reverse flow classification were proposed.
考察了分级过程中颗粒所受的力场和介质流体的流动场，分析和比较了与之对应的两种不同形式的分级，即颗粒物料的逆流分级和错流分级。
While an incompressible liquid flows through a rotating inclined-tube with a constant pressure gradient the secondary flow due to Coriolis Force appears on cross section of the tube.
流体在压差作用下，流经绕与中心线成任意角的转轴匀速旋转的圆管时，由于哥氏力的作用，垂直于中心线的截面内将产生二次流。
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