Research on the vortex breakdown and pressure loss characteristics in the cavity with anti-swirling waist circular drum hole

被引：0
作者：
Shen, Wenjie [1 ]
Wang, Suofang [1 ]
Zhang, Xindan [1 ]
机构：
[1] College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2024年 / 39卷 / 08期
关键词：
co-rotating cavity; coherent vortex; drum hole; pressure loss; vortex scale;
D O I：
10.13224/j.cnki.jasp.20220075
中图分类号：
学科分类号：
摘要：
To reduce the pressure loss in a compressor disk cavity, an anti-swirling waist circular drum hole structure was designed. Large Eddy simulation (LES) and the RNG k-ε model were used to investigate the vortex evolution and pressure loss characteristics in the cavity, respectively, revealing the vortex breakdown mechanism and drag reduction mechanism of the anti-swirling waist circular drum hole. The results showed that the anti-swirling waist circular drum hole can reduce the pressure loss in the cavity. The high-speed vortex was intensified rapidly in the low region of the cavity with waist circular drum, and the vortex scale increased rapidly, resulting in the rapid increase of pressure loss coefficient with the radial height decrease. Compared with the waist circular drum hole, the anti-swirling waist circular drum hole can effectively restrain the vortex scale increase and reduce the pressure loss in the cavity by 15.6%. With simple structure and linear airflow characteristic, the anti-swirling waist circular drum hole has high engineering application value. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
引用
收藏
相关论文
共 21 条
  • [11] OWEN J M, PINCOMBE J R, ROGERS R H., Source-sink flow inside a rotating cylindrical cavity, Journal of Fluid Mechanics, 155, pp. 233-265, (1985)
  • [12] FIROUZIAN M，, OWEN J M，, PINCOMBE J R，, Et al., Flow and heat transfer in a rotating cylindrical cavity with a radial inflow of fluid, International Journal of Heat and Fluid Flow, 7, 1, pp. 21-27, (1986)
  • [13] SUN Zixiang, AMIRANTE D，, CHEW J W，, Et al., Coupled aerothermal modeling of a rotating cavity with radial inflow, Journal of Engineering for Gas Turbines and Power, 138, 3, (2016)
  • [14] JIANG Liangliang, Research on flow characteristics of turbine-plenum chamber and the vortex-reducer with bafflers, (2014)
  • [15] XIA Zilong, WANG Suofang, HOU Xiaoting, Influence of tube length on flow resistance and temperature reduction characteristics of tubed vortex reducer, Journal of Aerospace Power, 35, 1, pp. 88-96, (2020)
  • [16] ONORI M, AMIRANTE D, HILLS N J, Et al., LES validation for a rotating cylindrical cavity with radial inflow: GT2016-56393, (2016)
  • [17] KUMAR B G V，, CHEW J W，, HILLS N J., Rotating flow and heat transfer in cylindrical cavities with radial inflow: GT2012-68770, (2012)
  • [18] HOU Xiaoting, WANG Suofang, ZHANG Kai, Drag reduction performance of tube-baffle composite vortex reducer, Journal of Aerospace Power, 35, 1, pp. 106-113, (2020)
  • [19] TIAN Ranran, MAO Junkui, FAN Jun, Et al., Numerical calculation of flow characteristics of hybrid vortex reduce structure combing de-swirl inlet, Journal of Aerospace Power, 34, 8, pp. 1677-1687, (2019)
  • [20] GEURTS B J，, FROHLICH J., A framework for predicting accuracy limitations in large-eddy simulation, Physics of Fluids, 14, 6, pp. 41-44, (2002)
123