流体力学

A ringless high pressure moving seal up to 1200MPa.

盛敬超。液压流体力学。

For pressure drop reduction and collecting efficiency incretion of the air filter, using computational fluid dynamics simulation technology and combineing with the way of experimental test, particles trajectories and distribution rate of deposition in air filters were calculated simulatively, the position where the particles reside easily was obtained.

为提高空气滤清器的减阻增效，采用计算流体力学模拟技术，结合实验测试的方法，模拟计算颗粒在空气滤清器中的运动轨迹和颗粒在滤清器中沉积的分布率，得出颗粒在滤清器中容易沉积的部位。

The nanofiltration membrane pores were modeled as slitlike pores characterized by the fixed pore size, pure water permeability and surface electrical potential.

假定纳滤膜具有狭缝状孔，使用纯水透过系数、膜孔径及膜表面电势来表征纳滤膜的分离特征，用流体力学半径和无限稀释扩散系数表征了离子特性。

Considering gas-solid flow in annular space and BoYun Guo's hydrodynamic parameters model, For aired underbalanced drilling, combined with the minimum energy Angel law and based on the mininum gas injection scale at the key points, it is established a bottom-hole pressure model for gas-solid two phase stream; meanwhile, calculated the downhole depth of the Downhole-Deployment-Valves; and then fabricated the corresponding calculation software. For streamingly underbalanced drilling, it is fully given a step-by-step solution based on analysis from the relationship of various wellbore pressures at the course of underbalanced drilling as well as from the streaming behavior in different wellbore sections, adding consideration on multiphase stream pressure drop and Downhole-Deployment- Valve into account, it is of common application for development wells.

对于气体欠平衡钻井，考虑环空为气固两相流，参考BoYun Guo的流体力学参数计算模型，结合Angel的最小动能法标准，从满足关键点处的最小注气量入手，建立了气固两相流的井底压力计算模型，同时对套管阀的下入深度进行了计算，并利用VB语言编制了相应的计算软件；对于液体欠平衡钻井，考虑环空为多相流，在充分分析欠平衡钻井井内基本压力关系的基础上，从环空多相流压降分析入手，通过对井筒内各段的流态分析，逐段求解。

Numerical simulation of the unsteady flow in a transonic turbine stage is still a hard work for CFD researcher.

涡轮级内的非定常流场数值模拟是现阶段计算流体力学研究的重要领域，也是研究的难点。

Heat tramsfer and hydraulic characteristics of transversally corrugated tubes.

贾檀，陆应生，庄礼贤，等。横纹管的传热与流体力学特性研究。

Objective To analyze the relationship between the cell proliferation and flow fields inside theβ-tricalcium phosphatescaffold with the computational fluid dynamics.

目的 通过流体力学模型分析三维灌注培养条件下载体内细胞增殖与流场变化的关系。

At last the paper realized the advantages and disadvantages of passive solar building and adnvanced some suggestions in future research. From another point, the paper logged the process of the building of the experimental equipment and the mounting of the measurement equipments that accumulated some operating experimence.Carrying experiments, calculating and analyzing the experimental data for more than 2 years, the paper gained some constructive conclusions. In winter the indoor air temperature and RH are lower than comfort criteria, but people feels very comfortable in the passive solar house. The thermo-circulation formed by Trombe wall play an important role in improving indoor air temperature and RH. Based on the analogy analysis theory, the natural convection heat transfer in the air gap can be treated as superposition of two natural convection heat transfer processes occurring over isolated isothermal vertical flat plate, in this case namely the massive wall and glazing. Two empirical formulas for Q and Nu are obtained. The investigation shows that the optimal time to open the damper should comply with the period that the thermo-circulation happens which can be controlled by thermal response characteristics of Trombe wall surface temperature and air temperature in the air gap.

经过两年多的实测和计算，根据传热学、流体力学、统计学等学科的基础理论，对大量数据进行整理归类、分析讨论，主要得到如下结论：(1)冬季，含有特朗贝墙体的被动式太阳房室内热湿环境较舒适性标准偏低，但人体感觉比较舒适，特朗贝墙体形成的热循环通风在调节室内温度和相对湿度方面起到很大的作用；(2)特朗贝墙体空气间层自然对流可以看作是两个等温独立大平板的自然对流换热过程的叠加，通过与大平板自然对流理论类比获得了计算热循环过程中对流换热量的经验公式；(3)特朗贝墙体通风口的启闭可以根据玻璃幕墙内壁面温度、蓄热墙体外壁面温度和空气间层进出口空气温度之间的关系来进行控制，从而有效地阻挡冬季冷循环的发生；(4)夏季，如没有有效的通风降温措施，被动式太阳房内会产生明显的过热。

So, the correct prediction of the blade flutter is very important in the design and modification of the turbomachine.

本文运用计算流体力学方法，成功地进行了二维和三维振动叶栅非定常粘性流动数值模拟。

Research on the inverse,hybid and optimization problems in engineering science with emphasis on turbomachine aerodynamic:review of,Chinese advances.In:Dulikravich G.S.

长期从事流体力学及流体机械、叶轮机内流动数值模拟、环保产品研制及计算机应用软件开发等教学和科学研究工作。

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。