粘性流

Viscous flows around an infinite span untapered swept back wing at high angles of attack are investigated numerically by solving the quasi two dimensional Navier Stokes equations to deal with the effects of the swept-angle on the flow structure and force behavior.

通过数值求解Navier Stokes方程，研究了无限翼展直后掠翼在不同后掠角下的大迎角粘性分离流，探讨了后掠角对流场结构和升阻力特性的影响。

On the basis of three dimensional viscous numerical simulation on the internal flow field in the vaned diffuser of a centrifugal compressor,the influence of shaper parameters on the pneumatic performance in low solidity vaned diffuser is compared.

通过对一离心压缩机叶片扩压器内部流场进行三维粘性数值模拟，对比分析了小稠度扩压器的主要形状参数对气动性能的影响。

Although the flow in the vaneless nozzle is three-dimensionat, it is two-dimensional in viscous sub-layer.

通过对喷嘴出口湍流流场的分析，认为三维湍流边界层的粘性底层内流动仍是二维的，因此可以采用可靠的二维壁面律。

In other words, below the overshoot capillary number, only capillary driven flows control where the fluids are emplaced at the pore-scale, above this number, the viscous forces begin to play a role.

换句话说，低于这过冲的毛细管准数，毛细管排流只控制固定于孔隙的流体，高于此数，粘性流体的动力开始发生作用。

Non-cohesive bedload; steady current; asymmetric waves; plane bed; sheet flow; theoretical model; transport rate formula; flume experiment; numerical experiment

非粘性推移质；恒定流；非对称波浪；动平床；临底高含沙层；理论模型；输沙率公式；水槽试验；数值试验

The mechanisms summarized are as follows: 1 compressional normal stress;2 ductile and/or viscous deformation in bedding fault since incompetent bed is susceptible to plastic flow;3 higher li.

其机理可归纳为四个方面：1压性的正应力；2以韧性及粘性变形为主，因为非能干岩层易塑性流变；3涂抹效应强；4面理化组构，垂直面理方向的封闭能力大大增强。

The theoretical analytic solution of the cone valve was derived by the applications of fluid dynamic mechanics and its related equations, and the curve of the fluid rate coefficient of the cone valve with its opening was obtained.

本文综合应用流体力学及流体动力学的有关理论，同时结合粘性流动与紊流流动的动力学方程，对节流阀进行了理论解析分析，得出了锥形阀流量系数与开度的关系。

The transonic flutter characteristics are investigated for several wings, empennage and wing-body configuration, flutter critical speeds are numerically simulated.

以ONERA M6机翼和无后掠矩形机翼为算例，分别对它们的跨音速定常和非定常粘性绕流进行了数值模拟，计算结果和有关文献的结果进行了比较，吻合较好。

A new airlift loop reactor was designed with the typical high viscous character of Xanthan gum fermentation, and the relationships between hydromechnical model and operating conditions were tested, the principle that the reactor's high shearing zone enhances mass transfer by making use of shear-thinning peculiarity of Xanthan broth was analyzed.

针对典型高粘性流体黄原胶的发酵特点，设计了一种新型气升环流反应器，对反应器中液相流型与操作条件之间的关系进行了实验考察，分析了反应器中高剪切区利用流体剪切变稀特性强化传质的原理。

Complicated ─ crushed stone soil, sandy soil and filling of light dense, soft plastic clay soil ～ fluid plastic clay soil, water table above the fundus elevation, not easy to unwatering

复杂──稍密以下碎石土、砂士和填土，软塑～流塑粘性土，地下水位在基底标高之上，且不易疏干

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐