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。
FVM method was applied to simulate the unsteady gas flow in manifold of diesel engine.
本文运用时空守恒元与解元方法对进排气系统中的气体流动进行了模拟计算。
The space time conservation element and solution element method was applied to simulate the unsteady gas flow in intake and exhaust manifold of ICE.
针对15A型二冲程汽油机排气系统的流动过程进行了模拟计算，对计算中某些边界条件的计算方法进行了探讨。
The characteristic method was used in simulating computation of non steady gas flow process in the exhaust system of model 15a petrol engine.
作者应用不稳定流动计算机模拟方法，不仅能估算排气消声器特性，还能模拟不同消声器结构对发动机性能的影响。
With the computer simulation of exhaust mufflers and IC engines, the influence of mufflers on engine performance as well as exhaust noise can be predicted.
本文即是针对这两方面的要求，进行燃气轮机排气蜗壳的设计及数值模拟计算，为设计制造高性能的舰用燃气轮机排气蜗壳提供可靠的依据。
In order to offer reliable basis, in this article a few exhaust volute models of gas turbine are designed and some numerical simulations are carried on according to the requirements mentioned above.
排气扩压器的作用是将发动机排出燃气的部分动能转换成压力能，真实模拟发动机排气反压和环境压力条件。
The function of exhaust diffuser is to transform part of momentum energy of exhaust gases from engine into pressure energy to simulate actual exhaust back pressure and environment pressure.
按照所确定的结构制作了几何比为1：2 . 5的实验模型，模型实验结果表明，本文的数值模拟方案具有令人满意的精度，对于船用排气消声器阻力特性预估是非常有效的。
The scale of experiment model is 1 to 2.5. Model experimental results show that numerical simulation is very effective for forecast of resistance characteristics of Marine exhaust mufflers.
以数值模拟为手段，描述了透平低压排气缸内部复杂的三维可压缩湍流流场。
Numerical results are obtained for the three dimensional compressible flow field of low pressure turbine exhaust hood.
数值模拟清晰地显示了排气缸通道内的流场结构是以各种旋涡为主要特征，包括通道涡、分离涡和端壁涡等。
The computational results revealed a complex vortex system within the casing model, including a passage vortex, a separation vortex and an endwall vortex.
运用计算流体动力学对汽车排气催化转化器气流特性开展数值模拟。
Computer fluid dynamics (CFD) is adopted to simulate the flow fields of a catalytic converter while researching the working process of an emission postprocessor.
在风洞中模拟底排实验，通过测量和控制流量计前介质总压，获得了较高准确度的底部排气率。
In wind tunnel test, the base bleed ratio of higher accuracy is obtained by measuring and controlling the total pressure of the bleed medium in front of flowmeter.
在风洞中模拟底排实验，通过测量和控制流量计前介质总压，获得了较高准确度的底部排气率。
In wind tunnel test, the base bleed ratio of higher accuracy is obtained by measuring and controlling the total pressure of the bleed medium in front of flowmeter.
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