The calculation results of unsteady flow in an exhaust manifold model are presented.
最后对一根模型排气管进行了不稳定的流场计算。
The other is about the calculation and experiment of the two-dimensional unsteady turbulent flow in an exhaust manifold.
二是对排气管的二维不稳定湍流流动进行了计算和实验研究。
Downstream rotor-stator interaction increases the unsteady fluctuating intensities of the rotor tip clearance flow and the tip leakage loss.
下游静叶干涉增加了动叶顶部间隙流的非定常波动强度和泄漏损失。
The fluid mechanics equations of one-dimensional incompressible unsteady flow are adopted in whole low-speed turbo-compression system.
本文将一维非定常不可压流体力学方程组，应用于整个低速透平压缩机系统。
The main analytical method of unsteady flow in pipelines includes frequency domain analysis and time domain analysis.
管道中非稳定流动的分析方法主要有频域法和时域法。
Based on potential flow theory, a numerical method is proposed for predicting the steady and unsteady hydrodynamic performances of puller type podded propulsors.
应用升力面理论涡格法和面元法，建立了拖式吊舱推进器非定常水动力性能的数值计算方法。
The flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.
采用一维非恒定流方程模拟地下排水管网内的水流，并给出泵站、闸门、淹没出流管道等排水系统的处理方法。
FVM method was applied to simulate the unsteady gas flow in manifold of diesel engine.
应用有限容积法对发动机排气管系中的气体流动作模拟计算。
Additional visual observations are usually in order to establish the advent of unsteady flow, intermittent stall, and full stall.
通常采用另外一些目视法来确定非常定流断续失速和全失速的出现。
The unsteady flow in oil pipeline can be effectively analysed by use of different numerical methods as well as computers.
输油管道中油品的不稳定流动问题，可以采用各种数值法并借助计算机进行有效分析。
The compiling of simulation calculation program for unsteady flow process of two-class turbocharged systems in diesel engines is completed in this paper.
并完成了柴油机两级涡轮增压不稳定流动过程模拟计算程序的编制，实现了对过程的模拟计算。
In this paper, a FVM-TVD method for simulation of one-dimensional unsteady flow in inlet and exhaust manifold of ICE has been constructed.
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）。
The new method is used to study transonic flow in cascades and one kind of complex unsteady transonic axisymmetric flow in arc breaker.
利用本文的方法，分别计算了跨声速叶栅流动和工程中一类复杂非定常轴对称跨声速流动。
The threshold pressure gradient of low permeability sandstone was studied experimentally by measuring the pressure attenuation in an unsteady seepage flow.
为了研究低渗透砂岩的启动压力梯度，设计了一种非稳态渗流中测量压力的试验方法。
The wake flow of stator vanes and the unsteady flow in the passage of rotor blades were solved by using oscillating fluid mechanics theory and parametric polynomial method.
采用参数多项式方法和振荡流体力学理论，求解静子叶片后的尾流场及尾流场作用下转子叶片通道内的非定常流场。
Compared with the spacecraft instrumentation, the ground air disturbance, the unsteady aerodynamic flow on crossing event and inside tunnel impose more challenges on the head design of HSR trains.
与航空飞行器相比，高速铁路由于还要面临地面气流的扰动，两车交会时气体的震荡，以及车体通过隧道时的气流变化，因此高速列车的头型设计比飞机更具挑战性。
The time-average of the unsteady flow-field obtained in the computation is discussed.
本文论述了计算所得的非稳态流场的时均值。
Numerical studies about cascade unsteady flow and the edge-matching technique are presented in this paper.
本文采用数值方法对叶轮机基元非定常流和排间匹配进行深入研究。
In this paper, the effects of solidity of rotor-stator cascades on axial-flow compressor performance are investigated with steady and unsteady flow calculation.
采用定常流和非定常流计算方法研究了各种动静叶稠度组合对轴流压缩机性能的影响。
A one-dimensional unsteady flow model is established based on the topography of the river course between the Three Gorges and Zhicheng.
针对三峡—枝城河道的地形特征，建立一维不稳定流模型。
It is clarified by experiments that the flowmeter used for measuring unsteady flow is not only simple but also precise and practical.
实验证明，这种流量计不仅结构非常简单、实用，而且对非定常流量的测定具有较高的精度。
Based on the steady flow module of the TRIP software, the unsteady flow module is developed, using a dual time algorithm and a dynamic grid technique.
在TRIP软件定常模块的基础上，采用双时间法和动网格技术开发了非定常模块。
The relationship between unsteady flow and blade loading distributions is very important in the design of turbomachinery.
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 phenomenon and law of unsteady flow in blade diffusor is analyzed in detail.
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。
Distribution of flow volume for unsteady mass flow in the straight pipe was analyzed and modeled by means of momentum balance and energy balance.
通过动量衡算及能量衡算方法分析并计算了直管内变质量流体流动的流量分配。
By using the impulsion flow analogy, the three dimensional, steady, separated flow problem is reduced to the two dimensional, unsteady, separated flow problem for solution.
文中采用冲击横流比拟概念，将绕旋成体的三维、定常、分离流问题转化为二维、非定常、分离流问题来求解。
Test results have shown that the test technology is effective and suitable for test of unsteady flow frequency spectrum performance of axial compressor.
试验结果表明，该试验技术对进行轴流压气机叶片排流场非定常频谱特性试验是行之有效的。
Turbulence is an extraordinarily complex three-dimensional flow which is unsteady, inerratic and composed of eddies.
湍流是一种高度复杂的三维非稳态、带旋转的不规则流动。
To solve this problem, this paper puts forward a method for obtaining unsteady flow velocity.
为解决这一问题，提出一种非稳定流动速度确定方法。
To solve this problem, this paper puts forward a method for obtaining unsteady flow velocity.
为解决这一问题，提出一种非稳定流动速度确定方法。
应用推荐