对不同轴向间距叶栅流场进行了大量时间精确模拟。
Lots of time accurate simulations about cascade flow field with different axial gaps are made.
对某型涡轮正弯及直叶栅流场进行了三维粘性求解。
Flow fields in a bowed and a straight turbine blade channels were simulated with 3d N-S solver.
数值模拟了槽道进气角和转折角对开槽叶栅流场特性的影响。
The effect of slot inlet Angle and turning Angle on flow field characteristic of cascade with slot was studied numerically.
并将该方法成功地应用于超音速叶栅流场全息干涉图的判读。
This method is successfully applied on criticizing the holographic infinite interference diagram of the supersonic cascade flow field.
分别对可压缩叶栅流场的亚音速和跨音速流动进行了数值模拟计算。
Some cases of compressible flow as well as incompressible flow are presented.
作为应用实例，本文将自适应网格用于二维无粘跨音速叶栅流场计算。
As an application example, the 2-d inviscid transonic cascade flow is solved by using adaptive grids.
采用本文编制的程序，分别对不可压缩和可压缩叶栅流场进行了数值计算。
The procedure is used to calculate the incompressible and compressible turbulent flow of cascade.
对比数值模拟结果，优化后有效地改善了叶栅流道中的流动状况，级性能有了显著的提高。
After optimization, the flow field in cascade passage is effectively improved, and the performance of stage is improved obviously.
采用数值分析与模型实验相结合的方法，对水轮机导水部件双列环列叶栅流场进行了分析研究。
The flow field of double-row annular cascades of hydraulic turbines is studied by means of digital analysis in combination with model tests.
二维跨音速叶栅流场的计算是在无粘时间相关法计算程序的基础上采用无粘-边界层迭代而得。
An inviscid-viscous interaction method based on the inviscid time marching computer code has been employed to calculate the transonic flow field of two dimensional cascade.
应用一维源项喷气模型，结合涡轮叶栅流场数值模拟，得到了不同喷气形式下涡轮叶栅流场细节。
The detailed flow field of ejection cascade was obtained by using a compact ejection model coupled with the calculation of main flow field.
在叶栅流场的数值模拟中，有效地利用贴体网格，对提高流场预测的准确性和减少计算机时有重要意义。
In the numerical analog of cascade flow, using body-fitted grids effectively is of great significance in improving computation accuracy and saving CPU time.
为了更好地获取平面叶栅流场试验中的激波数据，提出了基于数字图像处理技术的参数测量与分析方法。
In order to obtain better shock wave experimental data in 2-d cascade, a novel method for parameter measurement and analysis is proposed based on digital image process technology.
作者经过计算和分析，说明压气机叶栅流中主要的相互作用形式是叶栅槽道中激波和湍流附面层的相互作用。
It is shown by calculation and analysis that the main form of the interaction in compressor cascades is the interaction between shock wave and turbulent boundary layer in channels.
结果表明：冲角不仅对叶片表面的压力分布，而且对叶片附近的流动状态，特别是在叶栅流道的后半部，有很大的影响。
Results show that incidence affects evidently not only the pressure profile, but also the flows behavior close to the blade profile, especially in the rear part of the cascade passage.
对于给定的叶片厚度分布和吸力面上的设计压力或速度分布，应用本文方法可求得满足设计要求的叶片几何形状和叶栅流场。
With the thickness distribution of a blade and the pressure or velocity distribution on its suction specified, the blade contour and the flow field of cascades that satisfy the gi…
为了详细研究涡轮叶栅的气动特性，深入了解涡轮叶栅流道内的气体流动，对某型涡轮导向叶栅内的流场结构进行了数值模拟。
For investigating the aerodynamic character of the turbine cascades, understanding the detail flow in turbine cascades, the computational investigation was applied on some type turbine guide vane.
叶栅中部和端部二次流均增强，总平均的二次流动能增大。对于该叶栅，叶片反弯曲亦不能提高叶栅流场的气动性能，直叶片叶栅总损失最小。
For the turbine stator cascade, the negative curving of blade can not improve the performance of the cascades as well, the total losses of straight cascade are the lowest.
叶栅汽蚀绕流时所产生的汽穴不仅使流场发生了变化，而且其未知的形状使流场的求解变得十分困难。
A cavitation bubble in a cascade not only changes the flow field of the cascade, but also makes it difficult to calculate the flow field because of its unknown shape.
计算结果表明，振荡叶栅非定常流场的压力响应在叶栅前缘较大。
The results show that the unsteady pressure response is large in the oscillating cascade leading edge.
采用离散旋涡法对振荡叶栅传播失速不稳定流场进行了数值模拟。
The unsteady flow in an oscillating cascade with propagating stall was simulated numerically with discrete vortex method.
与常规叶片相比，二次流损失较小的后部加载叮型所构成的叶栅内的通道涡在结构上较为稳定。
Compared with conventional blade, the passage vortex structure is more stable in cascade with aft-loaded blade which secondary loss is small.
本文提出了用小扰动欧拉振幅方程求解振动叶栅非定常流场的方法。
In this paper, the Euler amplitude equation is developed to obtain the unsteady flow field in vibrating cascades.
实验结果表明：采用最佳倾斜角叶片能降低叶栅能量损失和改善叶栅出口流场的气动性能。
Experimental results show that by using an optimal Angle of inclination energy losses can be reduced and outlet flow fields improved.
本文介绍了利用CSSRC建成的PIV系统在小循环水槽中进行叶栅绕流流态显示及流场测量的试验。
This paper describes an experiment to measure quantitatively and visually the flow around a plate cascade using PIV in a circulating water channel in CSSRC.
叶片间的振动相位差和来流冲角对振荡叶栅的稳定性均有较大影响。
Stability of an oscillating cascade is affected to a great extent by the interblade phase and incidence angles.
本文用时间推进法求解欧拉方程组计算二维平面叶栅绕流问题数值实验是否有多重解现象。
The mutiple-solution phenomenon of steady transonic flow about two-dimensional plane cascade using the Time-Marching method for the Euler equations is examined.
通过实例分析，证明这种方法对叶栅绕流等复杂流动现象的模拟是有效的。
Results reveal that the new method is effective for complex phenomenal simulation such as cascade flows.
采用边缘提耳义算法给出了流场中激波在叶栅中分布的清晰轮廓图；
The legible outlines of the shock waves were given by using the edge detection algorithm.
给定不同型式的进口边界层，在两种不同亚音速条件下对一平面扩压静叶栅的弯叶片流场进行了数值模拟。
For several given types of inlet boundary layer, a numerical investigation on flow field of bowed stator vanes under two inlet subsonic Mach Numbers was carried out.
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