|
|
|
|
|
Valerie Hernley, Aleksandar Jemcov, Jeongseek Kang, Matthew Montgomery and Scott C. Morris
The relationship between aerodynamic forcing and non-synchronous vibration (NSV) in axial compressors remains difficult to ascertain from experimental measurements. In this work, the relationship between casing pressure and blade vibration was investigat...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lucilene Silva, Tomas Grönstedt, Carlos Xisto, Luiz Whitacker, Cleverson Bringhenti and Marcus Lejon
The ratio between blade height and chord, named the aspect ratio (AR), plays an important role in compressor aerodynamic design. Once selected, it influences stage performance, blade losses and the stage stability margin. The choice of the design AR invo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hefang Deng, Kailong Xia, Jinfang Teng, Xiaoqing Qiang, Mingmin Zhu and Shaopeng Lu
The moving endwall has a great influence on the development and stability of axial compressor leakage flow. This paper presents a novel experimental facility with a high-speed moving endwall for studying axial compressor leakage flow. The uniqueness of t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Alexios Alexiou, Ioannis Kolias, Nikolaos Aretakis and Konstantinos Mathioudakis
An approach for preliminary aero-engine design, incorporating a mean-line code for the design of axial-flow, multi-stage compressors, is presented. The compressor mean-line code is developed and integrated within a framework for the preliminary design an...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mingchang Fang, Yanrong Wang, Xianghua Jiang and Peng Tan
The tubed vortex reducer in the axial compressor can destroy the vortex in the disk cavity, by a thin-walled tube, to reduce the total pressure loss. The tube may suffer from vibration problems, such as flutter and forced vibration, which are closely rel...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shuai Ma, Jun Hu, Xuegao Wang and Jiajia Ji
To make measurement of end-wall flow between blade rows in a compact multistage configuration possible, a miniature L-shaped five-hole probe was employed in this paper. This compact tip structure, realized by laser-printing instead of the conventional ma...
ver más
|
|
|
|
|
|
|
|
|
|
|
Clémence Rannou, Julien Marty, Geoffrey Tanguy and Antoine Dazin
The tip gap region of an axial compressor rotor is a source of complex flows, inducing losses and stability issues. Recent works have proven the ability of blowing high-speed jets in the tip region to improve the surge margin of an axial compressor stage...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mohammad Akhlaghi and Yahya Azizi
This paper investigates the effects of two modifications to a vaned recessed casing treatment. First, the shape of a circular curve was used in the top of the treated casing. Second, a fully curved guide vane was also applied. The goals of the modificati...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mohammad Akhlaghi and Yahya Azizi
In this paper, unsteady characteristics of a modified vaned-recessed casing treatment with 23.2% rotor blade tip axial chord exposure were studied numerically. The modifications to the traditional vaned-recessed casing treatments were composed of geometr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Razvan Nicoara, Daniel Crunteanu and Valeriu Vilag
As a main component of most gas-turbine engines, the axial flow turbines have been in a process of continuous improvement, reaching high efficiencies and reliability. A well-known drawback of these systems is the rapid decrease in performance when operat...
ver más
|
|
|
|
|
|