upper pickup

A new equation is given to predict the maximum penetration of planar dense jets with different injection angles and initial densimetric Froude number .

采用κ-ε湍流模型和混合有限分析算法,对静止环境中多排放角度的平面负浮力射流进行了数值模拟,分析了射流角度和出口密度弗汝德数对负浮力射流特征量的影响,给出了考虑排放角度的最大上升高度计算公式。

According to the fact that the viewpoints on whether the interlayer soil influences the maximum height of the capillary water rise or not always keep difference,the maximum height of the capillary water rise in sand-layered soil was studied through the experiment and analysis which was based on the dynamics theory of the soil water movement.

针对目前层状土体剖面夹层土质对毛管水分最大上升高度的影响存在较大分歧,以沙土夹层为例,从土壤水动力学的角度,通过实验和理论分析,分不同情况对层状土壤的毛管水最大上升高度进行了系统研究。