查询词典 endless flow

Numerical simulation of the steady cavitating turbulent flow in the whole flow passage of a Kaplan turbine has been carried out by using a full cavitation model and a mixture two-phase flow model.

采用一种完整空化模型和一种混合流体两相流模型，对轴流式水轮机全流道内的定常空化湍流流动进行了数值模拟。

In his research, effluents were divided into three categories: hyperpycnal flow, homopycnal flow and hypopycnal flow.

在Bates的研究中，入海的河水被分成三种类型：异重流、等密度流和异轻流。

ARA has performed both wind-tunnel tests and CFD computations for numerous Customer projects over the past 30 years. One such example is the investigation the interference effect of various boom support locations on the flow over a civil aircraft empennage; the accompanying figure shows the flow field in the region of the empennage, as computed by an Euler flow solver.

阿糖胞苷的表现都风洞试验和计算流体力学计算为众多客户项目在过去30年里，其中一个例子是，调查干扰的影响，各种蓬勃支持的地点，对流动的一个民用飞机尾翼；随行的数字显示流量外地在该地区的尾翼，作为计算一欧拉流求解。

The effect of the feed seawater temperature, the heating steam temperature of NO.1 evaporator, the concentration ration, the steam extraction, the quantity and location of preheat flow, the form of TVC on performance of a distiller is discussed. Not only serial flow and parallel flow, but also system with and without TVC was compared.

利用求解结果，针对进口海水温度、第一效加热蒸汽温度、系统浓缩比、电厂抽汽参数、外界热源预热量以及预热位置、热压缩布置形式等参数对系统性能的影响进行了分析与比较，同时分别针对串联和并联流程、有热压缩和无热压缩的低温多效海水淡化系统方案进行分析。

Based on this test, more detailed research of the flow pattern and flow frame and flow field in differ...

因此，分析研究阀门段水流急变分离流的流态及其变化规律，对理论研究和工程设计实践都具有重要意义。

Simulation on the inner flow field of a horizontal tubes of falling film evaporator in a refrigeration system was performed using two-phase flow model VOF in FLUENT,and the influence of different tube arrangements on the flow field was examined.

采用FLUENT两相流VOF模型，对制冷系统中水平管降膜式蒸发器内部流场进行了数值模拟，研究了蒸发器内部蒸发管的不同布管方式对蒸发器内部流场的影响。

The structure of supersonic combustion flow field was analyzed. The effects of temperature and equivalent ratio of supersonic premixed flow on the structure of supersonic combustion flow field, ignition and flame propagation were studied.

采用普通的纹影系统实现了高温超声速燃烧流场显示；对超声速燃烧流场结构作出了分析；研究了超声速预混可燃气的温度以及当量比对超声速燃烧流场结构、点火与火焰传播特性的影响。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory.

本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文题名聚合物异型材口模挤出三维流动研究副题名外文题名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 论文作者涂志刚导师柳和生包忠诩教授学科专业材料加工工程研究领域\研究方向学位级别博士学位授予单位南昌大学学位授予日期2001 论文页码总数148页关键词挤出成型聚合物材料挤出口模聚合物异型材馆藏号BSLW /2003 /TQ320 /9 本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

The flumes hall has a sediment characteristic analysis room and seven advanced glass flumes with automatic controlling and measuring systems, where researches can be conducted on flow structure in curved channel, movement of suspend load, movement of bed load, movement of hyper concentrated sediment flow, movement rules of sediment caused by wave and current flow together, or by the wind, channel pattern transformation and the settling characteristics of sediment etc.

水槽实验大厅拥有本学科内国内外自动化程度最高、测控技术最先进、规模最大的浑水变坡玻璃实验系列水槽共七座以及泥沙基本特性分析室，可以进行弯道水流结构、悬移质泥沙运动、推移质泥沙运动、高含沙水流运动、波流、径流共同作用下泥沙运动规律、河型转化、风作用下泥沙运动规律的研究、泥沙的沉降特性等。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。