本文论述了计算所得的非稳态流场的时均值。
The time-average of the unsteady flow-field obtained in the computation is discussed.
本文将三维势流理论应用于压水堆上腔室稳态流扬分析。
The three dimensional potential flow theory is applied to the analysis of the steady flow field of PWR upper Plenum.
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.
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.
轴对称稳态流，假设轴向扩散相比径向扩散、轴向对流和径向对流是可忽略的。
Axisymmetric steady flow, assume the axial diffusion is negligible compared with the radial diffusion, axial convection and the radial convection.
建立了喉栓发动机稳态流场的数值模型，用原理试验结果对数值模型进行了校验。
The main contents and conclusions in the paper including: Estiablished the steady numerical models of pintle controlled solid rocket motor, and verified the model with the theoretical experiment data.
采用双时间步和预处理相结合的方法计算非稳态流场，保证了采用预处理方法后计算结果的时间精确性。
Time precision of calculation results of unsteady flow field was ensured by using combined method of dual-time step and preconditioning.
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.
本部分基于研究成果发表在了2009年西南石油大学国家重点实验室学术会议“两层模型在稠油混砂液水平井稳态流模拟中的应用”。
The research result is published in the meeting of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University in 2009.
对超声速冲压发动机进气道—喉道段进行了二维稳态流场数值模拟，给出了反压与攻角变化对冲压发动机进气道起动状态影响的数值模拟结果。
The prevailing software numerically simulates a 2-D internal steady flow of the ramjet inlet-isolator; the numerical simulation results of the state of start in the ramjet inlet are presented.
并通过吸收传质流体CFD模型，应用有限元方法对气液吸收过程中出现的自然对流发生过程进行了数值计算，得到了液相自然对流发生时的非稳态流场分布和浓度分布信息。
Unsteady flow and concentration fields in the liquid phase of a gas-liquid contacting system were simulated to show the natural convection by utilizing the finite-element CFD method.
用粒子成像测速技术（PIV）和稳态法分别测量均相流体在热管生物反应器中湍流时的流场、温度场；
The flow field and temperature field of the uniformity phase fluid were measured by PIV and the steadystate method during the state of onflow.
采用PHEONICS数值仿真软件，对热电冰箱的无负载瞬态工作、有负载稳态和瞬态工作时箱内温度场和流场进行了数值模拟。
In steady and transient state, air temperature field and flow field inside the thermoelectric refrigerator, loaded and no loaded, are calculated by using a CFD software PHEONICS.
提出了饱和黄土流滑破坏的产生条件和利用稳态强度判断饱和黄土能否产生液化流滑的方法。
Occurrence conditions of liquefaction for loess and the judgment method of flow slide of saturated loess by steady state strength are presented.
用添加稳态故障的方法分析了燃气发生器和燃烧室氧化剂管路流阻系数，以及氧化剂温度对发动机参数的影响。
The simulation by adding stable state fault was used to study the effect of flow resistance coefficient of oxidant pipe in gas generator and chamber and oxidant temperature on the engine parameters.
将各种非稳态火源热释放速率计算式嵌入建筑物火灾烟流性状预测软件并进行了算例验证。
Some heat release rate formulas are added to the application software for calculation on the properties of the fire smoke flow in building.
结果表明，在实验范围内，由于冷凝使畸变流场的平均紊流度增加12～25%，稳态畸变指数DC_（60）可能增加、不变或减小。
The condensation leads the average turbulence to be increased by 12-25% and the steady-state distortion factor, DC60, to be changed obviously in the experimental range.
对XLPE电缆稳态运行下发热特性、载流能力预测硬件系统及软件系统设计等问题进行了研究。
The steady heat characteristic of XLPE cable, the hardware circuit design of current carrying capability and system software design are studied.
本文给出了一个用于研究PEM燃料电池内水迁移的稳态、等温、两相流模型。
A steady state isothermal two-phase flow model is presented in this paper to study water transport in PEM fuel cells.
基于两相流体网络，建立了针对具有复杂流路布置的翅片管换热器稳态通用分布参数仿真模型。
A general steady distributed parameters model of fin-and-tube heat exchanger with complex refrigerant circuits was developed based on two-phase fluid network.
动态负载时电池的开路电压要比稳态运行时的高，主要原因是因甲醇窜流造成的过电势的减少。
The open circuit voltage of the cell under dynamic operating is higher than that under steady state owe to the reduction of mixed potential caused by methanol crossover.
对在均匀流场作用下的二维非稳态晶体生长控制方程进行了分析，证明了原定解问题的解是稳定的。
The stability about the solution of the original problem is proved by analyzing a two-dimensional time-dependent control equation for crystal growth in a uniform convection field.
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.
本文基于一维非稳态多分支非定常流，建立了相应的数学模型，采用有限容积法理论对方程进行数值离散分析。
The thesis established the flow model based on one-dimensional, unsteady, compressible, Navier-Stokes equations, and discrete the governing equations using a finite-volume formulation.
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.
应用计算流体力学(CFD)方法对转动坐标系下的三维环形密封流场进行了准稳态数值模拟，在此基础上进行了转子动力系数的计算。
Three dimensional annular seal flow field was simulated quasi-steadily with computational fluid dynamics (CFD) method in a rotating reference frame. The Rotordynamic coefficients were calculated.
从动力系统流的概念出发，给出了系统稳态周期解稳定度的数值计算方法。
A numeric method evaluating stability degree of periodic solution based on perturbing response data is introduced by the aid of the concept of dynamic systems or flows.
为分析搅拌针的形状对点焊稳态过程流场的影响，建立了圆柱形、三角形和方形三种不同形状的搅拌针模型。
The models of cylindrical, triangular and square pins are created to predict the effect of the pin shapes on the material flow in the steady-state welding.
本实验根据流态化原理改造了原有的提升管中试实验装置，使其可以在加压条件下稳态操作。
According to particle fluiding principle, we revamp the pilot scale test riser to make it operate smoothly in the boosting pressure.
本实验根据流态化原理改造了原有的提升管中试实验装置，使其可以在加压条件下稳态操作。
According to particle fluiding principle, we revamp the pilot scale test riser to make it operate smoothly in the boosting pressure.
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