1) vertical two dimensional flows
垂向二维流动
1.
According to the particular sizes and boundary conditions of the experiments,the vertical two dimensional flows with free surface of weir flow were computed numerically.
根据物理实验的具体条件,应用基于RANS方程和VOF方法对堰流垂向二维流动进行了数值模拟。
2) two-dimensional vertical
垂向二维
1.
A laterally-averaged two-dimensional vertical mathematical model is presented for the sediment transport in the macrotidal estuary using Galerkin finite element method.
采用四节点任意四边形等参单元,根据G a lerk in有限元法进行数值离散,建立了潮汐河口沿宽度积分平均的垂向二维泥沙数学模型。
2.
:A two-dimensional vertical finite element model of estuarine tidal flow has been established by laterally integrating Navier-Stokes equation.
应用变网格有限元方法，采用任意四边形等参单元，离散横向积分的 Navier-Stokes 方程，建立河口潮流垂向二维数学模型。
3) vertically integrated model
垂向二维模型
4) one dimension vertical influent
垂向一维渗流
1.
For easy calculation, the condition around the test is assumed one dimension vertical influent and homogeneous formation in datum handled, thus the velocity approximation approach and the formula method to compute the parameters have been gained.
为了便于求解,在试验数据处理的过程中将试验环境概化为垂向一维渗流和均质岩层的组合,有入渗速度近似法和公式法。
5) two-dimensional flow
二维流动
1.
A two-dimensional quasi-homogenous mathematical model has been developed on the basis of the two-dimensional flow model to simulate the axial-radial flow reactor for dehydrogenation of ethylbenzene to styrene under reduced pressure in this paper.
在轴径向反应器二维流动模型的基础上导出了基于二维流动的二维拟均相反应器模型 ,应用有限差分法求解此模型 ,发现轴径向反应器反应转化率略高于相应的径向反应器 0 。
补充资料：垂向分层理论
垂向分层理论
stratification theory of grains in vertical direction
ehuix旧ng feneeng Iilun垂向分层理论(stratifieation theory of grainsin vertieal direetion)对重选过程中矿粒群在介质中作垂向分层运动机理的阐释。在重选设备内堆置或铺置的动态矿粒群称作床层。借助介质的垂直流动、沿斜面流动或作回转运动使床层松散，是粒群发生分层转移的先决条件。分层是指矿物粒群按密度差形成不同的矿物层;颗粒的粒度以及形状对分层也有重要影响。对于分层的发生机理，曾经有过多种见解，但归纳起来不外两类观点。一类是动力学分层学说，认为分层是按个别颗粒在介质中的运动差异发生的(见自由沉降速度差分层学说、干涉沉降速度差分层学说);另一类是静力学分层学说，认为分层是粒群整体的内在不平衡因素引发的(见悬浮体密度差分层学说、位能分层学说和重介质分层学说)。前一类学说强调了流体动力对颗粒运动的影响，而忽略了颗粒间的静力作用;后一类学说的立论观点则忽视了流体动力对分层的影响，而将床层内颗粒或颗粒群间的静力差异视为分层的决定性因素。 (孙玉波)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条