Steady Air injection flow control in centrifugal compressor

被引:0
|
作者
Benhegouga, Islem [1 ]
Yang Ce [1 ]
机构
[1] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China
关键词
centrifugal compressor; Air Injection; Numerical simulations;
D O I
10.4028/www.scientific.net/AMM.138-139.471
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In the present work steady air injection upstream of the leading edge was used in a centrifugal compressor, Whose preliminary design of compressor injection systems can be modeled by a geometrical relationship between user-specified yaw angle and resulting blade incidence angle based on simple velocity triangles, the error between the best yaw angle obtained from this relationship and that obtained from numerical simulation is less than 3%. To reveal the mechanism, steady numerical simulations were performed on high pressure ratio centrifugal compressor rotor operated with a rotor tip speed of 586 m/s. Parametric studies of the injection yaw angle was performed to determine the configuration that provide the best steady results for the compression systems studied in this work. The injectors were placed at short distance (ten percent of the inlet tip radius upstream of the compressor face) the objective of this was to achieve maximum control over the leading edge flow by varying individual injection parameters. The injection angle, alpha, was fifteen while the yaw angle, beta, was parametrically varied. The results show that at design speed (n= 50 000 r/min) with injection flow rate equal to 3% of the main flow rate and 25 degree air injection yaw angle can lower the mass flow rate at stall for approximately 7.5%.
引用
收藏
页码:471 / 477
页数:7
相关论文
共 50 条
  • [1] Steady air injection flow control for increasing the surge margin of radial flow compressor
    ISLEM Benhegouga
    杨策
    李杜
    陈山
    [J]. Journal of Beijing Institute of Technology, 2012, 21 (03) : 321 - 327
  • [2] Numerical simulation of Steady Air injection flow control effects on a transonic axial flow compressor
    Benhegouga, Islem
    Yang Ce
    [J]. INDUSTRIAL DESIGN AND MECHANICAL POWER, 2012, 224 : 352 - 357
  • [3] NUMERICAL INVESTIGATION OF STEADY AIR INJECTION FLOW TO CONTROL ROTATING STALL IN CENTRIFUGAL COMPRESSORS
    Halawa, Taher
    Alqaradawi, Mohamed
    Badr, Osama
    Gadala, Mohamed S.
    [J]. PROCEEDINGS OF THE ASME 12TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS - 2014, VOL 2, 2014,
  • [4] Computational analysis of centrifugal compressor surge control using air injection
    Stein, A
    Niazi, S
    Sankar, LN
    [J]. JOURNAL OF AIRCRAFT, 2001, 38 (03): : 513 - 520
  • [5] An Unsteady Flow Control Technology Based on Vortex Injection for Centrifugal Compressor
    Hong, Shuli
    Yang, Yuxuan
    Lu, Weiyu
    [J]. MECHANIKA, 2024, 30 (03): : 244 - 250
  • [6] STEADY/UNSTEADY DIFFUSER FLOW IN A TRANSONIC CENTRIFUGAL COMPRESSOR
    Benichou, E.
    Trebinjac, I.
    [J]. 11TH EUROPEAN CONFERENCE ON TURBOMACHINERY: FLUID DYNAMICS AND THERMODYNAMICS, 2015,
  • [7] Comparative Study on Steady and Unsteady Flow in a Centrifugal Compressor Stage
    Kim, Changhee
    Son, Changmin
    [J]. INTERNATIONAL JOURNAL OF AEROSPACE ENGINEERING, 2019, 2019
  • [8] Steady and unsteady flow phenomena in a channel diffuser of a centrifugal compressor
    Kang, JS
    Kang, SH
    [J]. JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING, 2004, 47 (01) : 91 - 100
  • [9] Effect of Double Air Injection on Performance Characteristics of Centrifugal Compressor
    Toshiyuki Hirano
    Tatsuya Ogawa
    Ryutaro Yasui
    Hoshio Tsujita
    [J]. Journal of Thermal Science, 2017, 26 (01) : 11 - 17
  • [10] Effect of Double Air Injection on Performance Characteristics of Centrifugal Compressor
    Hirano, Toshiyuki
    Takano, Mizuki
    Tsujita, Hoshio
    [J]. JOURNAL OF THERMAL SCIENCE, 2015, 24 (01) : 10 - 16