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多排叶片
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  multiple blade rows
     By means of a three vector equation system,the correlative equations of the undetermined parameters are thus deduced when the small disturbance theory is applied to multiple blade rows.
     通过三个矢量方程组 ,系统地归纳了小扰动理论应用于多排叶片时各待定系数的关联方程。
短句来源
  “多排叶片”译为未确定词的双语例句
     INVESTIGATION ON THE 3D FLOW IN MULTIPLE BLADEROWS AND THE INTERACTION BETWEEN BLADEROWS AND EXHAUST SYSTEMS
     多排叶片内部流动以及叶片排与排气系统相互作用研究
短句来源
     An Analy sis of Approaches for Multiple Blade Row Interfaces
     多排叶片间交界面处理方法分析
短句来源
     The phase-lagged method was adopted to solve the difficulty caused by the different number of vanes in different vane rows, some experiences and some formulas were shown in this paper.
     为了解决各排叶片通道宽度不相同的叶轮机械非定常流动数值模拟问题,论文采用相延迟方法实现了具有多排叶片、各排叶片通道宽度不相等的叶轮机械非定常流动数值模拟,详细介绍了相延迟理论以及具体的实现方法;
短句来源
  相似匹配句对
     STUDY ON THE SQUASH BEHAVIOR OF MULTILAMINATE STEEL TUBES ANTI SHOCK WAVE
     钢管冲击波压扁行为研究
短句来源
     MSCT diagnosis of bowel obstruction
     肠梗阻的螺旋CT诊断研究
短句来源
     An Analy sis of Approaches for Multiple Blade Row Interfaces
     叶片间交界面处理方法分析
短句来源
     TRACKING OF MULTIPLE TARGETS
     目标跟踪
短句来源
     Multiple target Tracking
     目标跟踪
短句来源
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  multiple blade rows
Performing PIV measurements within complex turbomachinery with multiple blade rows is difficult due to the optical obstruction to the illuminating sheet and to the camera caused by the blades.
      


A method to determine the appropriate upstream and downstream flow field, including the inlet and outlet stations which are sufficiently far away, of an embeded blade row in a turbomachine for use in S1 stream surface flow calculation or for non-planar cascade experiment is presented.

根据五十年代初建立起来的叶轮机械三元流动通用理论,本文提出一个根据多排叶片的S_2中心流面的计算结果提供某一个叶片排的S_1流面计算所需的上、下游流场条件的方法。这个方法也适用于提供对多个叶片排中某一个叶片排的S_1流面上的叶栅进行实验工作时所需的叶栅上、下游条件。本文给出的算例表明:这种方法可以使S_2中心流面计算得到的叶片排上、下游间隙站上的气流参数基本上不因拿掉它的上、下游叶片排而受到影响;同时还表明,使用本方法后得到的S_1流面计算结果与通常的处理方法得到的S_1流面计算结果在叶片的前缘处有明显的差别。

The method of joint calculation of steady relative flow pacing through the cascade of rotor and absolute flow passing through the cascade of stater was presented. The relative stream function and absolute stream function are adapted to the relative flow and absolute flow respectively. Through the relation between absolute stream function and relative stream function, the absolute and relative stream function equations governing the absolute and relative flow respectively were solved simultaneously. This method...

The method of joint calculation of steady relative flow pacing through the cascade of rotor and absolute flow passing through the cascade of stater was presented. The relative stream function and absolute stream function are adapted to the relative flow and absolute flow respectively. Through the relation between absolute stream function and relative stream function, the absolute and relative stream function equations governing the absolute and relative flow respectively were solved simultaneously. This method is relatively simple and can be used in the engineering design. When it cooperates with the calculation of S2 stream surface, the quasi-three-dimensional and full three-dimensional calculation and design passing through several cascades can be obtained.

将通过转动叶栅的定常的相对流动和通过静止叶栅的定常的绝对流动相连接,作为统一流场求解.这样在实际的压气机和透平的计算中与S,配合,可以组成多排叶片的同时统一计算,得出多排叶片的准三元和全三元分析计算与设计. 在计算中,采用了广义的Kutta-Jukowsky条件.对最后一排叶片的出气角,中间叶栅的流函数值进行调整.实际计算表明,这种调整是敏感和有效的.计算结果表明:相对于不定常计算,计算比较简单,可供工程使用.

An inception criterion of rotating stall in multistage axial flow compressors is derived for the unsteady,two dimensional and incompressible flow model according to the small disturbance stability theory.By means of a three vector equation system,the correlative equations of the undetermined parameters are thus deduced when the small disturbance theory is applied to multiple blade rows.The prediction of the rotating stall onset boundary in the multistage...

An inception criterion of rotating stall in multistage axial flow compressors is derived for the unsteady,two dimensional and incompressible flow model according to the small disturbance stability theory.By means of a three vector equation system,the correlative equations of the undetermined parameters are thus deduced when the small disturbance theory is applied to multiple blade rows.The prediction of the rotating stall onset boundary in the multistage axial flow compressors has been accomplished with the computer program designed by the authors.A theoretical prediction approach is proposed with the aid of the prediction method of stable cascade characteristics.A good agreement between the analytical and experimental results indicates that the theoretical analysis is believable.As compared with the calculation results,the influences of the undetermined parameters,such as stall cells and axial distance between two stages,on the prediction values are discussed.

以小扰动理论为基础 ,应用非定常、二元、不可压流的流动模型 ,推导了任意级轴流压气机的旋转失速起始判别准则通式。通过三个矢量方程组 ,系统地归纳了小扰动理论应用于多排叶片时各待定系数的关联方程。利用所设计的计算机程序 ,完成了对多级轴流压气机旋转失速起始边界的理论估算。与叶排特性的预估方法相结合 ,提出了一种较完整的理论估算失速边界的方法。理论值和实验值的吻合 ,证实了理论分析的可靠性。对比计算结果 ,讨论了失速团数目和级间轴向间距这些待定参数对预估结果的影响

 
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