1) wind-blown-sand two phase flow
风沙两相流
1.
Experimental Research On Sand Incipience Law in Wind-Blown-Sand Two Phase Flow;
风沙两相流中沙粒起动规律的实验研究
2) water and sediment two phase flow
水-沙两相流
1.
LDV measurments and experimental study of water and sediment two phase flow;
使用该技术对水平方管内的水-沙两相流运动进行了试验观测,给出了两相速度、纵向及垂向湍流度,以及泥沙浓度的测量结果。
3) Water-sediment two phase flow
水沙两相流
1.
Based on the water-sediment two phase flow theory,turbid water was treated as one phase homogeneous fluid.
基于水沙两相流理论,将含沙浑水作为一相均匀流体处理,引入相间滑移速度的概念,建立混合相连续方程、动量方程、第二相的体积分数方程和相间相对速度方程的ASM(Algebraic Slip Mixture)两相流模型,并耦合求解水动力学计算的标准k-ε方程组。
4) aeolian and lacustrine facies
风水两相
5) wind-blown sand
风沙流
1.
Stochastic sand trajectories in wind-blown sand were obtained by solving the differential equation which describes the vertical fluctuating velocity of sand grains.
通过对描述沙粒垂向运动速度脉动分量的随机微分方程的直接求解,获得了风沙流中沙粒运动的随机轨迹。
2.
Through simulations on abated effect of nylon and plastic nets with different structure on wind-blown sand in wind tunnel, the aim of this paper is to provide a theoretic base for optimized design of blown sand engineering in the field and a new sand-defending material application.
通过不同结构的尼龙网和塑料网对风沙流减弱作用的风洞实验研究,旨在为探求各种防沙新材料的防护功能,并为防沙新材料的开发、野外工程防沙的优化设计及其应用提供理论依据。
3.
Though simulations on abated effect of nylon net with different porosities on wind-blown sand in wind tunnel, the aim of this paper is to research the relationship between sand transporting and nylon net porosity and wind velocity.
通过对不同孔隙度尼龙网对风沙流减弱作用的风洞模拟实验,旨在探求输沙量与孔隙度和风速二者之间的关系,从而为防沙新材料的开发、野外工程防沙的优化设计及其应用提供理论依据。
6) wind-sand current
风沙流
1.
Characteristics of activity and sediment of wind-sand current in Xinjiang line of New Eurasian Continental Bridge;
新亚欧大陆桥新疆段风沙流活动特性及停积规律
补充资料:风沙流
风沙流 wind-drift sand 风成沙在风力作用下的移动现象。风携带各种不同粒径的沙粒,使其发生不同形式和不同距离的位移称风的搬运作用 。当近地面的风速大于每秒4米时,0.1~0.25毫米粒径的沙粒就能被搬运形成风沙流。通常,被风吹扬的沙粒的颗粒大小和风速成正比。风沙流中的含沙量与高度有关。据观察,风沙流中的绝大部分沙粒都在近地表10厘米以下,并随着风速的增大而增多。风沙粒的运动方式有3种:①<0.2毫米的沙粒在风速每秒5米时,呈悬浮状态移动称悬移。②气流中飞跃的颗粒,降落时碰撞地面而产生的回弹称跃移。③跃移颗粒对地面较大颗粒冲击后,缓缓向前移动称蠕移。 |
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