1) wind sand fluid boundary layer
风沙流边界层
1.
Solution to two-dimensional wind sand fluid boundary layer equation of high speed car;
高速轿车二维风沙流边界层方程的解
2) blowing sand boundary layer
风沙边界层
1.
In order to test the accuracy of particle image velocimetry in wind tunnel and its application potential in blowing sand boundary layer research,seeding particles were selected as tracer and the wind velocity profile was re-measured,the distribution law of sand particle velocity and concentration was also obtained.
为了考察粒子图像测速度技术在风沙环境风洞中的测量精度及在风沙边界层研究中的应用潜力,通过筛选适当的示踪颗粒,借助PIV测量系统重新测量了风沙环境风洞中的风廓线,并获得了风沙边界层内跃移沙粒的速度和浓度分布规律。
5) laminar boundary layer
层流边界层
1.
Velocity and temperature fields of natural convection in laminar boundary layer of compressible gas along a vertical plate;
沿垂直壁上可压缩气体层流边界层的自然对流流场及温度场
2.
Study on bottom shear stress of laminar boundary layer under the action of random waves;
随机波浪作用下底部层流边界层剪应力谱的研究
3.
Based on basic equations of fluid mechanics and non Newtonian fluid mechanics, this paper is concerned with the numerical solutions of laminar boundary layer equations of power law fluids along wedge formed bodies by means of new dimensionless variables without making any assumption.
从流体力学和非牛顿流体力学的基本方程出发，在未作任何假设的情况下，通过引入合理的相似变量，得出了幂律流体绕流楔形物体时的层流边界层常微分方程及其数值解，该常微分方程及其解在塑性指数ｎ＝１时，与经典流体力学中的方程及解完全相同。
6) laminar boundary layer flow
层流边界层
1.
With this model,we first simulate the distribution of the velocity,free surface and bed shear stress under the laminar boundary layer flow condition,and the comparisons between the numerical results and the theoretical results are good.
运用数值模拟的方法对线性波作用下的层流边界层和紊流边界层进行了研究。
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