Effects of stator splitter blades on aerodynamic performance of a single-stage transonic axial compressor

  • Ky-Quang Pham School of Excellent Education, Vietnam Maritime University, 484, Lach Tray Street, Le Chan District, Hai Phong City, 840225, Vietnam
  • Xuan-Truong Le Aeronautical and Space Engineering Department, Hanoi University of Science and Technology, 1, Dai Co Viet Road, Hai Ba Trung District, Hanoi, 100000, Vietnam
  • Cong-Truong Dinh Aeronautical and Space Engineering Department, Hanoi University of Science and Technology, 1, Dai Co Viet Road, Hai Ba Trung District, Hanoi, 100000, Vietnam. Phone: +842438682525; Fax: +842438684945
Keywords: Transonic axial compressor, stator splitter blades, RANS analysis, total pressure ratio, adiabatic efficiency, stall margin, stable range extension

Abstract

Splitter blades located between stator blades in a single-stage axial compressor were proposed and investigated in this work to find their effects on aerodynamic performance and operating stability. Aerodynamic performance of the compressor was evaluated using three-dimensional Reynolds-averaged Navier-Stokes equations using the k-e turbulence model with a scalable wall function. The numerical results for the typical performance parameters without stator splitter blades were validated in comparison with experimental data. The numerical results of a parametric study using four geometric parameters (chord length, coverage angle, height and position) of the stator splitter blades showed that the operational stability of the single-stage axial compressor enhances remarkably using the stator splitter blades. The splitters were effective in suppressing flow separation in the stator domain of the compressor at near-stall condition which affects considerably the aerodynamic performance of the compressor.

Published
2020-12-17
How to Cite
Pham, K.-Q., Le, X.-T., & Dinh, C.-T. (2020). Effects of stator splitter blades on aerodynamic performance of a single-stage transonic axial compressor. Journal of Mechanical Engineering and Sciences, 14(4), 7369 - 7378. https://doi.org/10.15282/jmes.14.4.2020.05.0579