分析了流体的非稳态流动及颗粒的密度分布对模拟结果的影响。
The influence of non-uniform flow and particle density distribution on the simulation results was discussed.
试验研究了恒定二元水平有压扩散流中的局部非稳态流动现象。
Based on model experiment, the local unsteady phenomenon in 2-d horizontal flow with steady divergent pressure was studied.
制冷剂在通过毛细管过程中，存在一个不稳定的亚稳态流动阶段。
A metastable phase exists during the refrigerant flowing through the capillary tube.
文献中对某六缸柴油机的冷却系统进行了稳态流动与传热数值模拟研究。
The influences of grid density and time-step on calculation accuracy and computation time are analyzed. The simulation results of transient thermal flow fi…
例如，关井dts数据可以提供与起裂点位置相关的信息，同时稳态流动数据可以用来判别生产曲线。
For example, shut-in DTS data can provide information regarding the location of fracture initiation points, while steady-state flowing results can be used to determine production profiling.
在动态过程中，催化剂表面上的吸附物种浓度随时间而变化，从而可以获得稳态流动法所不能提供的信息。
Useful information provided by steady state flow method can also be obtained from dynamic experiment as the concentration of the absorbed species on the catalyst surface changes with time.
以气体钻井过程中气体的稳态流动和在接单根过程中的瞬态流动为主要研究对象，运用有限差分方法求解。
Gas drilling in the course of the steady flow of gas and the next single course of the transient flow as the main study, the use of finite difference method to solve.
结果表明，流动应力随应变速率的增大而增大，不同温度和应变速率的真应力-真应变曲线呈稳态流动型。
The results show that the flow stress increases with the increase of strain rate, and the true stress-true strain curves at different temperature and strain rates are stable-state.
系统模型中包含了用集总参数和相移动边界法建立的热交换器动态模型，以及压缩机和膨胀阀的稳态流动模型。
The system model comprises the dynamic heat exchanger model based on the lumped parameter method and moving phase boundary method, and the stable flow models of compressor and expansion valve.
利用计算流体动力学(CFD)软件，建立了催化转化器流场的二维模型，对催化转化器的稳态流动进行了数值模拟。
A two-dimension model for the flow field in catalytic converter was established, and the steady state flow was simulated with the computational fluid dynamics (CFD) code.
针对高压共轨喷油器内部非稳态流动现象，建立起瞬态流动的物理数学模型，采用模块化分析方法进行了瞬态数值模拟。
The mathematic model of the transient flow was set up to study the unsteady flow phenomena in the high-pressure common-rail injector.
方法：用磁共振相位对比电影法测定模拟脑血液流动的管状模型稳态流动下流体信号强度，并与相应的速率进行相关性分析后分别得出相应的转换函数关系。
Methods: tube flow phantoms which simulating the cerebral blood flow were established. Flow signal intensity of the steady flow in tubes was measured by MR phase-contrast cine technique.
对三维准稳态激光重熔问题进行数值模拟，模型考虑了熔池内金属液体的流动和换热。
With the non staggered grids, a three dimensional quasi state laser remelting problem, considering heat transfer and fluid flow, is numerically simulated.
针对再生式液体发射药火炮(RLPG)内弹道过程中非稳态喷雾燃烧流动问题，建立了数学模型，给出了具体的计算方法。
Aimed at nonsteady spray combustion flow problems of regenerative liquid propellant gun (RLPG) in process of interior ballistic, mathematical model was established, and numerical method was derived.
通过求解三维层流N-S方程，得到了端面气膜稳态压力场及速度场分布，分析了气体在端面间隙内的流动形式。
The three-dimentional laminar Navier-Stokes equations were solved for getting the gas film pressure and velocity distributions in the steady state, and the flow styles in the clearance were analyzed.
针对幂律型流体，建立了稳态三维粘性不可压缩流体非等温流动的有限元模型。
The modeling for three-dimensional incompressible viscous non-isothermal steady flow was presented by using penalty finite element method.
湍流是一种高度复杂的三维非稳态、带旋转的不规则流动。
Turbulence is an extraordinarily complex three-dimensional flow which is unsteady, inerratic and composed of eddies.
本文根据两相流动换热理论，提出了一个板式换热器的稳态分布参数模型。
According to two-phase flow theory, a steady distributed parameter model of plate evaporator to simulate the plate evaporator is developed.
稳态热流和不可压缩流体的流动可相比拟。
Steady-state heat flow is comparable to the flow of an incompressible fluid.
同时对稳态和瞬态的流场进行解析，并对两者结果进行比较，分析叶轮旋转加速对流体流动的影响。
The influence to interior flow of pump by impeller accelerating is analyzed according to comparison of unsteady results and steady results.
利用该仪器可以测量聚合物在稳态和动态挤出过程中的流动速率、压力降、离模膨胀和表观粘度等。
The flow rate, pressure drop, die swelling and apparent viscosity in dynamic and static extrusion can be measured by using this equipment.
但是在求解非稳态流体流动问题时，对非稳态项的处理一直是个棘手问题。
While in calculation of unsteady state problems, the transient terms are always knotty problems to deal with.
该文根据凝析气藏稳态理论，求解了气液多相流动产能方程。
According to the steady-state theory of the condensate gas reservoir, the productivity equation of gas-liquid multiphase flow was run.
地铁车站内的空气流动是极其复杂的三维非稳态湍流流动。
The airflow in subway station is complicated three-dimensional unsteady turbulent flow.
本文对轴向柱塞泵或马达缸体与配流盘之间的稳态油膜流动做了数值计算。
Sealing and lubricating fluid film between port plate and cylinder block of axial piston machines has complex shapes.
采用非稳态数学模型，通过数值模拟对周期性矩型槽通道内流动和换热的振荡特性进行了研究。
Based on an unsteady model, the oscillatory convection heat transfer is studied numerically in the periodical channels with periodically grooved parts.
接下主要内容介绍了准一维流动，接著讨论扰动流与非稳态流。
The next large block of lectures covers quasi-one-dimensional flow, followed by a discussion of disturbances and unsteady flows.
结果表明：该合金高温变形时存在明显的稳态流变特征，流动应力对应变速率和温度敏感。
The results indicated that the rheologic feature of steady-state is significant; the flow stress is sensitive to strain rate and temperature.
通过模拟，获得了滚珠旋压稳态下的金属的流动规律，与试验结果相吻合。
Through simulation, the flow rules of metal are obtained during the steady deformation of ball spinning, it coincides with results of experiment.
通过模拟，获得了滚珠旋压稳态下的金属的流动规律，与试验结果相吻合。
Through simulation, the flow rules of metal are obtained during the steady deformation of ball spinning, it coincides with results of experiment.
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