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The dissertation is part of the Doctoral Scientific Fund Project of the Ministry of Education of China.

本文是国家教育部博士点基金项目"粘性流体在叶片泵内的流动机理研究"的一部分。

Optimization system of reaction turbine runner based on numerical simulation of 3D viscous flow is established.

本文建立了一套基于三维粘性流数值分析的反击式水轮机转轮水力性能的优化方法。

A numerical method based on chimera technique has been developed to simulate the viscous flow past a helicopter r...

本文发展了一种基于嵌套网格的计算绕直升机旋翼粘性流动的数值方法。

Viscous flow patterns are set up in the motor, increasing heat transfer to the propellant surface through greater mass transfer.

粘性流场的模式成立,在电机,增加传热推进剂表面通过更大的传质。

The viscous force constantly drains eddy energy and limits the population of eddies.

粘性力不断消耗旋涡的能量,从而抑制着旋涡的繁殖。

In this paper,a three-dimensional viscous code has been developed to solve simplified Reynolds-averaged Navier-Stokes equations .The viscosity is simulated with viscous body force method.

本文采用一种简化的Navier-Stokes方程的计算方法-粘性体积力方法,计算了Krain叶轮内部流场。

Based on Geldart's particle classification and Ergun equation, and by taking into account the relative magnitude of viscous force and inertial force acted on the particles, a new transition equation between particle groups B and D is obtained.

根据Geldart 颗粒分类思想,以Ergun方程为基础,考虑粘性力与惯性力的相对大小,新建立了B/D 类颗粒的边界方程。

Therefore, if the viscous resistance coefficiency is rational selected, this model can be used in calculating the gas flow field of the filter.

因此,如果多孔介质的粘性队力系数选择合理,该模型可以应用于计算过滤器的气相流场。

With k- e turbulent model and wall function presented by Launder and Spalding, numerical results of viscous resistance coefficient, isoplethic maps of velocity and stress contributions areobtained.

采用k-ε紊流模式及Launder和Spalding提出的壁函数进行数值模拟,得到了该双尾船船体粘性阻力及速度、切应力的等值线分布等结果。

The use of the formula for calculating the grain diameter indensimeter method prescribed in "Standard for soil test method" GB/T 50123—1999 is limited to the small global grains with low velocity in a layer flow considering only the viscous resistance and effective gravity.

GB/T50123—1999《土工试验方法标准》中采用密度计法进行颗粒分析时,土粒粒径计算公式是在层流条件下,对低速运动的微小球形颗粒仅考虑介质粘性阻力和有效重力条件下导出的。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。