流体力学

It contains cross-study of basic theories of multiple subjects like the inertia balance of variable-mass rotation body under the rotating of accelerating, uniform, decelerating and varying accelerated and resonance, patting, damping and lagging caused by its vibration.

壳桶合一洗衣机避振系统的研发，看似简单实则复杂，它涉及了圆周运动、摆动、动平衡、陀螺效应、流体力学；变质量旋转体在加速、匀速、减速、变加速的转动中的惯性平衡及其振动产生的共振、拍、阻尼、滞后等等多学科基础理论的交叉研究，还需要通过大量定性模拟试验与定量实体实验，并对试验结果进行分析、优选、论证以及对其可靠性的证实等长期复杂的科学研发过程。

In this paper, an advanced measurement technique—particle image velocimetry was performed to obtain the instantaneous two-dimensional velocity distributions at some sections in the cyclone.

同时本文还使用计算流体力学软件—FLUENT提供的Reynolds应力模式对旋风分离器内的纯气相湍流场进行了数值模拟。

A mathemetical model of magnetic field in electromagnetic separation of inclusions from molten aluminum under rectangle coil and 50Hz current is presented according to the magnetic vector potential integral equation and the basic theory of magnetohydrodynamics. The magnetic field distribution in the gap of coils is simulated by the model and the actual magnetic field distribution also is measured. The experimental results show that the magnetic field distribution in the gap of coils is uniform and is consistemt with the model simulation. The magnetic field designed accord the simulated result is proved suitable in the practice.

摘 要：根据电磁流体力学的基本理论，利用矢量磁位积分，建立了在采用矩形电磁线圈和工频电源的条件下电磁分离铝熔体中夹杂的电磁场数学模型，模拟计算了电磁感应线圈气隙中的磁场分布状态，同时对制做的感应线圈的实际磁场进行了测量模拟计算磁场的分布状态与实际磁场的测量结果基本一致，都表明在电磁感应线圈气隙中磁场分布均匀，可以进行分离铝熔体中的非金属夹杂。

For this reason, the concept "flow point" in the interdiffusion field is proposed and the methods of fluid mechanics are applied to construct the phenomenological theory for describing the interdiffusion growth of solid phase. Two types of phase growth, i.e.

为了解决这一问题，作者借鉴流体力学的基本概念和方法，通过建立固体互扩散区域中"流点"的概念，推导了描述固体互扩散生长的普适方程，严格区别了相的体积生长与界面生长方式，并给出多元扩散偶中相生长的一般动力学描述。

The 3-dimension solid model of the 8th turbine rotor blade of some type aero engine is constructed in software UG, and the numerical calculation region of stream field in ECM is set up in special flow field calculation software FLUENT based on the principle of hydrodynamics. The distribution of 6-dimension forces is got after numerical calculation, and the equation between 6-dimision forces and interelectrode gap is set up.

基于流体力学原理，用UG造型出某型航空发动机8级涡轮转子叶片，用流场计算软件FLUENT构造电解加工中叶片的流场计算区域，经数值计算得到六维力的分布，并从理论上建立六维力与间隙之间的关系方程式，为后续试验研究提供了参考依据。

Because of the complexity of electric precipitator interior flow field, the problem can not be solved in theory. The precision and the range of use of kinds of equation are not satisfactory, the computational fluid dynamic can not easily attain better solution while the flow boundary condition is complicated.

由于电除尘器内部流场的复杂性，这一问题还无法从理论上来求解，而各种公式其精度和使用范围都不令人满意，计算流体力学在流动条件复杂的情况下不易取得较好的解。

Various kinds of method used in interplanetary magnetohydrodynamic simulation are reviewed in this paper.

回顾了应用于日地空间磁流体力学模拟的多种数值方法。

In this paper,jet pump theory and design methods are systematic studied.

随着流体力学和空气动力学的发展，推动了射流技术的应用和研究工作，射流泵的广泛应用及高效节能特点显著提高，并且在人类工农业生产中越来越显示出其重要的作用。

Studies on fluid flow and mixing of liquid steel in a gas stirred ladle

性质：在流体力学中，理想流体的流动称为理想流动。

With the method combining experiment and simulation technology of hydrodynamic calculation,a new energy-conservation wind-curtain lampblack presser is designed by comparing and analyzing the control characteristics of oil hood under different conditions.

通过对厨房油烟扩散机理的分析和模型实验，研究了影响油烟控制的各种因素，采用实验与计算流体力学仿真技术相结合的方法，对不同情况下油烟罩的油烟控制性能进行了比较、分析，设计出了一种新型节能型抽油烟机。

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。