本文考虑轴对称跨音速进气道外流场的有限差分计算方法。
A finite difference method for computing the axisymmetric, transonic flows over nacelle is presented in this paper.
车身外流场的网格生成是进行数值模拟的一个关键技术及前提。
The production of grids of an external flow field around a car body is one of the key techniques and a prerequisite for numerical simulation.
车身外流场的网格生成是进行数值模拟的一个关键技术及前提。
Grid generation in an external flow-field around a car body is one of the key techniques and prerequisites of numerical simulation.
确定了边界条件和计算参数后对汽车外流场进行了数值模拟计算。
The boundary condition and the computation parameters ware defined. Last, the fields of the pick-up truck ware calculated.
随后，未燃气体从泄爆口泄出，并在外流场与空气混合形成可燃云团。
Then, the combustible gas rushed out and mixed with the oxygen of the air to form combustible cloud.
应用计算流体力学(CFD)方法计算模拟轿车三维外流场，得出模拟计算结果。
The flow field around a car is simulated with the method of computational fluid dynamics (CFD) in this paper. Some aerodynamic parameters are obtained.
车轮影响着整个汽车的外流场特性，车体周围的流场由于旋转车轮的存在而复杂化。
The wheels have an important effect on the whole flow field, the flow field around a car become complex because the exist of rotating wheel.
与传统的风洞实验相比，汽车外流场的计算机数值模拟具有可再现性、周期短以及低成本的优点。
Compared with the traditional wind tunnel test, the simulation of vehicle outflow fields has several advantages: reproductively, short period and low cost.
采用CFD方法对集装箱货车外流场进行研究，数值计算结果对于货车的设计与开发具有一定的指导意义。
The external field of the truck was simulated by the CFD method. The result of numerical simulation provides an instruction for the truck design and research.
在某些条件下，泄爆外流场可能出现二次爆炸，故研究其外流场特别是二次爆炸的产生机制，具有重要的意义。
The dominant mechanisms of the occurrence of the secondary explosion during the venting processes were elucidated according to the numerical and relevant experimental results.
得到了高速旋转工况下对应于不同来流攻角和旋转角速度，临界工况时，超声速进气道内外流场复杂的波系结构。
Complex wave structures of supersonic inlet at different Angle of attack and spinning velocity related to high speed spinning and critical status were achieved.
在由三根陶瓷滤管组成的实验装置上，利用热线风速仪对脉冲反吹时滤管外瞬态流场进行了测定，分析了喷吹压力、脉冲宽度、过滤气速和喷吹距离对滤管外流场的影响。
Based on the experimental research of ceramic filter pulse jet cleaning system, the influence of the operation parameters and the structure parameters on the pulse jet performance is analyzed.
在由三根陶瓷滤管组成的实验装置上，利用热线风速仪对脉冲反吹时滤管外瞬态流场进行了测定，分析了喷吹压力、脉冲宽度、过滤气速和喷吹距离对滤管外流场的影响。
On a new experimental set-up of filter with three ceramic filter elements, the transient velocity outside the filter element is measured by hot-wire anemometer during pulse-jet cleaning process.
在由三根陶瓷滤管组成的实验装置上，利用热线风速仪对脉冲反吹时滤管外瞬态流场进行了测定，分析了喷吹压力、脉冲宽度、过滤气速和喷吹距离对滤管外流场的影响。
On a new experimental set-up of filter with three ceramic filter elements, the transient velocity outside the filter element is measured by hot-wire anemometer during pulse-jet cleaning process.
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