查询词典 fluid dynamics

Based on the basic theroy of fluid dynamics, this paper establishes a model of flow mechanics for turbulent flow, then uses this model to carry on a numerical simulation study on the conventional auger drill stabilizer annular flow field.

基于流体力学基本理论，本文建立了一套钻柱稳定器湍流模式力学模型，并采用该模型，对气体钻井常规螺旋钻柱稳定器环空流场进行了数值模拟研究。

With the help of modern computational fluid dynamics tecnology, this thesis carries on a numerical simulation of annulus multiphase flow of the conventional auger drill stabilizer; it points out the deficiency of the annulus gas in cutting-carrying and lifting; and attempts to develop a drill stabilizer that are suitable for the gas drilling.

本文试图借助现代计算流体力学技术，对常规螺旋钻柱稳定器环空多相流动规律进行数值模拟研究，指出在环空气体携岩举升方面存在的不足，开发一套适合于气体钻井的新型钻柱稳定器，提出全井段环空流场改善方法，实现气体钻井防斜打快，减少冲蚀，提高井眼净化能力的目的。

The transient fluid dynamics and large eddy simulation method are applied to simulate the unsteady flow in axial-flow pump.

通过与实测扬程和功率对比，证明本文所提出的方法可较准确地反映泵的流动特征。

To improve the design and analysis of axial-flow pumps, the Computer Aided Design system and the basic methods of flow field simulation and performance prediction base on the Computational Fluid Dynamics are developed in the paper.

本文针对目前轴流泵设计和分析过程中存在的主要问题，建立了完整的计算机辅助设计系统，并通过计算流体动力学手段，建立了分析和预测轴流泵内部流场及外特性的基本方法。

Based on computational fluid dynamics, physical environment in a traditional cave dwellings and two improved ones (cave dwelling with channel or ceiling) are simulated.

本文基于计算流体动力学技术，对传统窑洞和两种改良窑洞内的物理环境进行数值模拟，通过结果对比分析，评价各改良方案的优劣，并研究了风口参数对窑洞内环境的影响。

Based on Computational fluid dynamics, the problem on transient aerodynamic characteristics of sedan and coach crossing each other on road was researched by adopting technology of sliding interface and moving mesh.

应用计算流体力学数值模拟方法，采用滑动交界面和动网格技术，对开阔路面下轿车大客车会车过程的瞬态流动进行气动特性研究。

A new research method, computational fluid dynamics method,is introduced to solve problems in the paper coating industry of short-dwell coating processes.

介绍了流体动力学的一种新的研究方法──计算流体动力学方法，及其在造纸工业短驻留刮刀涂布过程中应用的结果。

In the ease of large Reynolds number, Reynolds stress turbulence model and computational fluid dynamics was used to simulate the cone valve flow field and investigate emphatically the effect of structural parameters, inlet pressure, outlet pressure, and valve opening on the flow field within cone valve.

在大雷诺数下应用雷诺应力湍流模型和计算流体力学方法对锥阀的内部流场进行数值仿真计算，着重研究阀的结构参数、入口压力、出口压力、阀口开度等对锥阀流场的影响。

The results also show that it is feasible and cheap to investigate cyclone separator's separation performance by means of computational fluid dynamics.

研究结果还表明，应用计算流体动力学来研究旋风分离器的分离性能方便且可行。

In the process of draining gas in gob area of a coal mine, the stability of surface drilling well and gas drainage effect were improved by studying different factors affecting the drainage effect and the term of service with the method of numerical simulation of computational fluid dynamics and field test.

在应用地面钻井抽采矿井采空区瓦斯的过程中，为了提高地面钻孔的稳定性及瓦斯抽采效果，采用CFD数值模拟和考察试验的方法研究了影响地面钻孔抽采效果和服务期限的不同因素。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？