详细分析了叶片扩压器内部的非定常流动现象和流动规律。
The phenomenon and law of unsteady flow in blade diffusor is analyzed in detail.
本文对叶型优化在非定常流动条件下的效果进行数值研究。
In this paper, the blade optimization effect has been investigated by numerical method under the condition of unsteady flow.
实际上，在通风网络发生灾变的情况下经常会遇到非定常流动。
Actually, in the case of ventilation network disaster airflow always was unsteady flow.
且不同模态下出口马赫数对非定常流动的影响规律表现不尽相同。
Moreover, the law governing the influence of the outlet Mach number on the unsteady flow under various modes is found to be not always identical.
在计算非定常流动时采用贴体运动网格，每一个时间步长生成一次。
The moving grids are attached to the wing and are generated at every time step in the calculation for the unsteady viscous flows.
矿井火灾时期，火源巷道内高温流体运动为非定常流动以及传热传质过程。
In mine fire period, the movement of high-temperature flow is a process of unsteady flowing, heat transferring and mass transferring in fire tunnel.
对压力波制冷机内非定常流动过程、波系结构、激波形成机理等进行了探讨。
The unsteady flow, structure of waves and mechanism of the forming of shock wave in pressure wave refrigerator are investigated in the present paper.
在此基础上对射流泵内非定常流动进行了数值模拟，得到了合理的计算结果。
The unsteady flow in a jet pump is calculated and the reasonable calculation result was gotten based on above research.
证明五面体双特征曲线网格方法可用来研究非定常流动条件下的推力偏心特性。
The pentahedral bicharacteristic curve grid can be applied to investigate the thrust misalignment characteristics in a unsteady f.
证明五面体双特征曲线网格方法可用来研究非定常流动条件下的推力偏心特性。
The pentahedral bicharacteristic curve grid can be applied to investigate the thrust misalignment characteristics in a unsteady flow.
本文提出广义一维非定常流动的模型，用以计算内燃机进、排气管中气体的流动。
This paper presents a generalized one-dimensional unsteady flow model for the calculation, of gas flow in manifold of I.
叶轮机内部非定常流动与叶片表面负荷分布之间的关系对于叶轮机的设计非常重要。
The relationship between unsteady flow and blade loading distributions is very important in the design of turbomachinery.
对此方向的深入研究，对于进一步挖掘叶轮机非定常流动的潜力开辟一条新的道路。
Working on this project will open a new road to explore the potential of unsteady flow.
介绍了进排气系统一维非定常流动的FVM-TVD法（总残差减少的有限体积法）。
In this paper, a FVM-TVD method for simulation of one-dimensional unsteady flow in inlet and exhaust manifold of ICE has been constructed.
基于CFX软件平台，对带无叶扩压器离心叶轮机械内部的非定常流动进行了数值计算分析研究。
The unsteady flow within a centrifugal fan with vaneless diffuser was numerical simulated and analyzed on the CFX software flat.
从非定常流动和弹性叶片振动相耦合的角度来研究叶片的强迫响应，对于叶片的高周疲劳具有重要意义。
From the standpoint of coupling of non-steady flow with elastic blade vibration, studied was the forced response of blades, which is of major significance for the high-cycle fatigue of blades.
为了给我国的高速铁路设计提供理论依据，采用特征线法对高速列车进入隧道引起的一维非定常流动进行了数值研究。
One dimensional unsteady flow induced by a high speed train entering a tunnel was numerically studied using the method of characteristics.
本文以拉格朗日方式研究叶轮机内动、静叶间的相互作用，通过直接跟踪流体涡团的时间历程，来描述流体的非定常流动过程。
The Lagrangian vortex method is applied to direct description of the unsteady flow due to rotor-stator interaction in turbomachinery by tracing the trajectory of vortices.
混流式水轮机在非设计工况点下运行时，尾水管内部的非定常流动是由死水域和螺旋涡带的动态行为引起的，尾水管上部的螺旋涡带旋转引起流动的基频脉动。
The unsteady flow in a draft tube of Francis turbine under the off-design operation is produced by the dynamic behavior of a helical vortex rope with the dead core.
对尾迹干扰下的转子非定常流场进行数值模拟，与传统设计定常流动假设下均匀进气的流场对比分析了尾迹干扰的影响。
Unsteady flow in the rotor is simulated and contrast between the flow field with wake flow at the inlet and that with uniform one is presented.
利用有限差分方法得到了动脉管系内非牛顿流体的准二维不定常流动的数值解。
A numerical solutions of quasi-two-dimensional unsteady flow of non-Newton fluid in the arterial pipe system is obtained by finite difference method.
利用有限差分方法得到了动脉管系内非牛顿流体的准二维不定常流动的数值解。
A numerical solutions of quasi-two-dimensional unsteady flow of non-Newton fluid in the arterial pipe system is obtained by finite difference method.
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