矿车的应用是当前矿山生产重要的基础设备，井下矿车的安全控制技术，成为矿井安全系统研究的重点。本文通过介绍煤矿井下运输过程中存......

Shallow hydrofoils are known to produce lower lift in normal operating conditions in comparison with deep hydrofoils. Ho......

This paper studies the bionic tubercle airfoils based on the NACA 0020 prototype airfoil, with 7 models derived from dif......

High-speed high-pressure(HSHP)ratio compressor surge is a transient breakdown in compression accompanied by an abrupt mo......

Computational prediction of stall aerodynamics in free air and in close proximity to the ground considering the 30P30N t......

The mechanism of compressor stall margin enhancement using the tip air injection is explored.The transonic compressor,NA......

<正> NAB [NdAl3（BO3）4] is a promising laser material for single model optical fibre eommunication. This crystal is grown b......

One day,a man in the Zheng State wantedto buy a pair of shoes.Before he set out forthe marketplace,he measured his foot......

命运对于赵丽也许并不公平。丈夫身带残疾,谁料28岁时她也摔伤了一条腿而落下残疾。下岗后,她经营起一家报刊亭。工作时间长,条件......

A new type fully reversible combined blade is presented, which can fully reverse airflow during the inverse ventilation......

(一)血淋淋的残肢断臂最初看到这幅职业安全广告的时候,那种心被剜,肠被掏,肉被割的感觉犹如晴天霹雳,五马分身,视觉受到极大的冲......

发动机紧凑性、重量和效率对现代直升机用涡轴发动机至关重要。单级高压比离心压气机具有结构简单、紧凑的特点,因此在发动机压缩......

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NameClassScore1.Listen,drawandwrite(听单词,画时刻,写单词)18%8.Readandtickorcross(读短文,打“√”或打“×”)6%Nowit's9:45......

Iwould be lying if I told you that when,back in October, one of my studentspeered over the toilet stall door to wishme a......

An experimental investigation on the unsteady tip flow field of a transonic compressor rotor has been performed.The casi......

In order to study the effects of wet compression on a transonic compressor,a full 3-D steady numerical simulation was ca......

As demonstrated by former work,the holed casing treatment can be used to expand the stall margin of a centrifugal compre......

The unsteady flow structure between rotor blade-to-blade passages in a three-stage axial flow compressor is experimental......

In order to gain a better knowledge of the mechanisms and to calibrate computational fluid dynamics (CFD) tools includin......

A stall inception model for transonic fan/compressors is presented in this paper. It can be shown that under some assump......

Experimental investigations are performed in a three-stage low-speed axial compressor with variable inlet guide vanes(IG......

In this contribution a quasi-one-dimensional tool for stationary and transient simulations of post-stall flows in multis......

The paper deals with the problem of stabilization of stationary bifurcation solutions of nonlinear systems via dynamic o......

A three-dimensional compressible flow stability model is presented in this paper, which focuses on stall inception of mu......

This paper presents the investigation of the effects of suction side squealer tip on the performance of an axial compres......

Unsteady behaviors as well as unsteady cascade flow fields of a single-stage axial flow compressor were experimentally i......

Frequent shifts of output and operating mode require a pump turbine with excellent stability. Current researches show th......

THE stall flutter of steam turbine long blade influences the operation safety of the large steamturbine.Some basic assu......

The effects of blade bowing on the performance of a high pressure-ratio turbocharger centrifugal compressor were studied......

都说德国人刻板严谨,这是一个哲学家辈出的国家,也是个一丝不苟的国家。听同学说过在德国碰到的一件怪事,有一个德国妇女牵着两条......

The objective of this paper is to compare the performances of the themes, which could be used for wave energy conversion......

An optimum design of the turbine would need a clear understanding of the influence of blade geometry on a Wells turbine ......

A Wells turbine for wave power conversion has hysteretic characteristics in a reciprocating flow. The hysteretic loop is......

A rigid system needs to change After 20 years of working as a stall-keeper in Beijing, 45-year-old Liu Yongping still li......

Guide vanes are installed in the Wells turbine in order to improve its efficiency, self-rotating characteristics and off......

The computer network is not only of benefit to people, but also helpful for the spreading of viruses. The net-viruses sp......

Fine arts publishing houses bring traditional reading material back for children The scene is still vivid for many grown......

当上帝为你关上一扇窗时，一定会为你再开一扇窗。盲人虽然眼睛看不见了，但他们会用敏锐的触觉帮助自己，以免自己受到欺负！　　1.At a s......

A numerical methodology for investigating compressor instabilities in a multistage environment is presented. The method......

This paper reviews the development in the research of flow instability and its control over the recent ten or more year......

This paper investigates the effect of upstream wake on unsteady separated flow field of downstream adjacent vanes by sol......

Based on the beginning, propagating and ending mechanism of rotating-stall cell, the relation between the pressure hist......

In order to clarify the natures of a rotating stall cell, the experimental investigation was carried out in a high speci......

This paper presents an experimental investigation of the characteristics of three-dimensional turbulent wakes of an isol......

The volute of a centrifugal compressor causes a non-uniform pressure distribution which leads to a radial force on the i......

This paper presents an experimental investigation of effects of a kind of streamwise-grooved blade on theperformance of......

In multi-spool engines,the downstream compressor experiences a rotating inlet distortion if rotating stall occursin ups......

The structure and behavior of rotating stall cell were experimentally clarified in a diagonal flow fan. The specific-spe......

Activities by various authors on aerodynamics and control dynamics of rotating stall in axial compressor are first trace......