紊流

When the Ra〓 is from 10〓～10〓 under horizontal annuli, the flow is in transition or in turbulent condition.

在水平同心套管〓，处于过渡和紊流状态的自然对流换热进行了数值模拟。

Droplet ignition and extinction in practical combustors are strongly influenced by forced convection and turbulence.

在实际燃烧室中，液滴点火和熄火受到强迫对流和紊流的强烈影响。

The measured flow velocities by means of PDA in the XFD-12 flotation cell were used to calculate turbulence energy spectrum of mixing region, flotation region and froth region.

经论文中试验、测定和计算己查明：在药剂条件适'fl{的条件下，浮选槽中矿浆紊流状态是影响泡沫征化不良的胜要原因。

Furthermore, using standard k-ε double equation turbulence model, it simulates the three-dimensional water movement of the circular and pier shaped cylinder measuring flumes, and makes researches on the discharge coefficient of the cylinder measuring flumes in the larger range.

用标准κ-ε双方程紊流模型，数值模拟圆柱形和桥墩形量水槽三维水流运动，在更大的范围内研究圆柱形和桥墩形量水槽流量系数的变化规律。

Seven factorswhich influence the collection efficiency and the influence of electric field force, gravity andion wind etc on the motion of dust have been investigated experimentally and theoretically.

本文通过理论分析和实验研究相结合的方法，讨论了影响除尘效率的七种因素及电场力、重力、离子风、紊流等对粉尘微粒运动的影响。

Un-equilibrium transport of sediment is the key of bed evolution of rivers and estuaries. The factors in sediment transport are very complex, for flows with sediments in nature are often turbulent flows.

泥沙输运的不平衡是河道、河口河床演变的物质基础，而影响泥沙输运的动力因素较为复杂，尤其是自然界存在的挟沙水流往往是紊流。

The relative leakage flow coefficient decreases with the increase of the rotational speed, and the leakage flow rate of the labyrinth seal at the high rotational speed of more than 6 000r/min decreases by 5.1%.

采用标准k-ε紊流模型和三维RANS方程求解方法，数值研究了密封间隙、压比、转速对典型迷宫密封泄漏特性的影响规律。

Experiments were done to contrast the heat tansfer enhancement and pressure loss caused by several single-pare vortex generators such as delta winglets,rectangular winglets,trapeze winglets,bevel-cut half-cylinder VG and bevel-cut half-elliptical column VG,which were installed in a rectangular tunnel respectively.

在雷诺数为4000～38000的紊流范围内对矩形风道内分别布置单排一对直角三角翼、矩形翼、梯形翼、斜截半圆柱体、斜截半椭圆柱体等涡流发生器的强化传热效果和压降特性进行了对比实验。

9 The quality assurance period for the materials thereof shall be within three months after the stainless steel tundish tabulators are put into production, so during the assurance period in the event of any quality problems, party b shall be liable for compensating for all losses thus incurred.

本合同材料的质量保证期限为不锈钢中间包紊流器使用投产之日起3月内，在保证期限内，如发生质量问题，乙方赔偿全部损失。

In order to search for the measure to increase the energy dissipation ratio of stepped spillways,some main influence factors on the energy dissipation ratio of stepped spillways,such as unit discharge, dam slope ,height of step and so on,have been studied.

为了探求提高阶梯溢流坝消能率的措施，本文首次采用紊流数值模拟方法，对影响阶梯溢流坝消能率的一些主要因素，如单宽流量、坝坡、阶梯高度等进行研究。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。