流量的福劳德数是流动状态的影响因素,即超临界流或亚临界流。
The Froude number of flow is the factor of flow status: supercritical flow or subcritical flow.
伟丁指出,鼓动妇女做出下流动作的囚犯将失去数周的被探视权利。囚犯每周拥有30分钟的被探视权。
Inmates who encourage women into ACTS of indecency can lose their visitation privileges for weeks, Wedding said. Inmates are permitted up to three 30-minute visits per week.
书针对化学工程应用,并且从而这热局限于是可压缩的流动(低的马赫数)。
The book is aimed at chemical engineering applications, and consequently it is limited to thermally compressible flows ( low Mach numbers).
这与大量的理论研究——一个主要的四面体配位结构是2或3左右,取决于离子对的流动率的溶剂化数是相悖的。
This contradicts numerous theoretical studies which indicated a primarily tetrahedral coordination structure with a solvation number near 2 or 3, depending on the prevalence of ion pairing.
研究了在二维定常不可压流动状态下雷诺数和翼型厚度等参数对翼型气动特性的影响。
For steady incompressible flows, the effects of Reynolds number and thickness of airfoils on the aerodynamic characteristics are studied.
和牛顿流体一样,宾汉流体的雷诺数超过一定值后,其流动将从层流向紊流过渡。
When the Reynolds number for Bingham fluid is larger than a certain value, the flow will transfer from the laminar state to the turbulent state as Newtonian flow does.
分析了蓄热式热交换器传热和流动过程的不可逆性,提出了熵产数的概念。
The irreversibility of heat transfer and fluid flow in regenerative he at exchanger was analyzed, and the number of entropy generation units was introduced.
通过选择不同结构、不同碳数的醇做流动相的极性改性剂,优化了色谱分离结果。
The chromatographic conditions were optimized using different alcohols as mobile phase modifier. The effect of temperature on chiral separation was investigated.
我们对小涡旋雷诺数的流动进行了求解。
实验结果表明,在较高的雷诺数下翼型近尾迹流动是一种以旋涡的运动学和动力学特性为主导的湍流剪切流。
The experimental results indicate that the turbulent near wake flow is dominated by the dynamic and kinematic characteristics of vortices at relatively high Reynolds number.
相同雷诺数的槽板平均表面换热系数是平板的2~3倍,同时减小了流动阻力。
The grooves on the heated surface lowered the flow resistance and enhanced the film heat transfer coefficient 2-3 times that of flat plates.
并指出,随着研究工作的深入,该项技术还可望用于高马赫数飞行体表面气体流动控制、火箭发动机推力方向控制等。
Along with the deep development of study, the microjet technology will be possibly applied to control the aerodynamic flow of the high speed aircraft surface and the thrust vector of rocket engine.
文中还对湍流热量交换系数、湍流动量交换系数与理查孙数的日变化关系进行了讨论。
Finally, the relationship between the turbulent heat and momentum exchange coefficient and the diurnal variation of the Richardson number is discussed.
重点考察分叉结构中可塌陷管和不同雷诺数流动之间的相互影响。
The emphasis of the project was laid on the effect between collapsible tube and viscous flow in bifurcating airways.
介绍了小马赫数下弱可压缩流体流动的模型,对该模型的数值求解方法和应用情况也做了叙述。
The paper introduce a weakly compressible flow model for small Machnumber. Both corresponding numerical solutions of the method and the applications are given.
流动成像测量探针数增多,方法多样;
The number of measuring probe for fluid imaging is increasing.
使用计算流体力学软件FLUENT,模拟均匀来流绕固定圆柱的流动,模拟雷诺数为20,40,100时的绕流流动,得到流场的流函数等值线图和速度矢量图。
Uniform flow around a mounting cylinder is simulated with the application of FLUENT software while Reynolds number is 20, 40,100. Stream function and velocity vector distributions are indicated.
首次用数值解方法研究了考虑毛管数效应、非达西效应及其耦合作用高速流动效应下凝析油气混合物渗流规律。
This paper studies the two-phase flowing characteristics in gas condensate reservoir considering the capillary number effect and non-Darcy effect based on numerical solution method firstly.
本文对涡轮叶片尾缘中具有束腰结构扰流柱的冷却通道的传热和流动阻力特性进行了实验研究,重点研究了雷诺数、扰流柱的束腰比以及不同组合的影响。
The heat transfer and characteristics of the fluid flow in the duct with waist-shaped pin - fin arrays for the trailing edge of the turbine blade were experimentally investigated.
在10,000 ~ 90,000的高雷诺数范围内,测量了流动摩擦系数、局部和平均对流换热系数。
In high Reynolds number range of 10,000 ~ 90,000, the flow friction factor, local and average convection heat transfer coefficients were determined.
在集中介绍离散涡方法的概念后,提出在高雷诺数流动情况下的一种简化流动模型—基于奇点法的离散涡模型。
After concentrated introduction of the conception of DVM, a simplified numerical model is proposed under high Renold number which is a DVM model combined singularity method.
还研究了压力梯度对临界雷诺数的影响,探讨了不同压力场对流动稳定性作用的规律性。
The effect of the pressure gradient on critical Reynolds number is also displayed and the influence rule of the different pressure fields on the flow stability is exploited.
本文给出了关于亚临界雷诺数二维圆柱绕流动态特性的实验结果。
The experimental study of the dynamic characteristics of flow past a two-dimensional circular cylinder is described.
以PVM为消息传递支持软件实现了低马赫数流动三维数值模拟程序LM_NS3D的并行化,考虑了通信优化、数据局部化及负载平衡等。
We parallelized LM_NS3D, a program for three dimensional low mach flow simulation, with PVM as the message passing environment. Communication is carefully optimized. Data locality is achieved.
建立了流动模型,提出了以无量纲准则数雷诺数为设计纤维液膜萃取分离器的准则。
A flow model was built. Moreover, based on the theoretical analysis, Renault number was proposed as the design principle dimensionless number for fiber film extractor design purpose.
研究了克努森数不是特别大的微流动的稳定性,这种流动处于N-S方程适用的临界处。
Modified N-S equations have been used to study the stability of microflow with a not-too-large Knudsen number.
应用本法计算了一些有严格解的流动,从而给出了推荐使用的展开流线数及计算站数;
It makes the application of the mean-stream-line method in large space cascade design possible with the optimized given velocity distribution along suction surface also guaranteed.
应用本法计算了一些有严格解的流动,从而给出了推荐使用的展开流线数及计算站数;
It makes the application of the mean-stream-line method in large space cascade design possible with the optimized given velocity distribution along suction surface also guaranteed.
应用推荐