CFD aerodynamic investigation of air-water trajectories on rotor-stator blade of an axial compressor

Zainol Mustafa, Pericles Pilidis, Joao A Amaral Teixeira

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In multistage axial-flow compressors, the droplet size distribution of the injected fluid depends upon the entry conditions. In general, droplet trajectory prediction is important for particulate laden flow turbomachinery as it helps to understand the pitting and the cutting of the blade leading and trailing edges as well as to improve the design of blade passages. An investigation was carried out using CFX-TASCflow on the aerodynamics of an axial-flow compressor designed for operation with air while operating with an air-fluid droplet mixture during field operation. In this study, a 3D rotor-stator blade with constant rotor rotating speeds was simulated. Droplet trajectories in rotor-stator were predicted in connection with full 3D air flow field solved by k-ω SST method. The test matrix involved different initial droplet diameters with constant rotor shaft rotation. The liquid used was water. The main objective of the investigation is to provide a physically realistic model describing the movement of liquid phase in an industrial axial compressor. In order to achieve this objective, CFD simulations were developed for predicting the water particle trajectories inside an industrial axial compressor, the rate of evaporation of water droplets on axial compressor blades by inertial impaction, turbulent diffusion, pressure and temperature increments. Simulation of water droplet trajectories and evaporation of water droplet content in designed gas turbine engine were also undertaken. The velocities and trajectories of the droplets, on the blades and the amount of water evaporated were investigated. The results show that the initial conditions of the droplets (velocity and size) have substantial influence on the flow pattern.

Original languageEnglish
Title of host publicationProceedings of the ASME Power Conference, 2005
Pages1167-1173
Number of pages7
VolumePART B
Publication statusPublished - 2005
Externally publishedYes
Event2005 ASME Power Conference - Chicago, IL
Duration: 5 Apr 20057 Apr 2005

Other

Other2005 ASME Power Conference
CityChicago, IL
Period5/4/057/4/05

Fingerprint

Stators
Turbomachine blades
Compressors
Aerodynamics
Computational fluid dynamics
Rotors
Trajectories
Air
Water
Axial-flow compressors
Evaporation
Fluids
Turbomachinery
Liquids
Pitting
Flow patterns
Gas turbines
Flow fields
Turbines

Keywords

  • Axial compressor
  • CFD
  • Flow patterns
  • Rotor-stator
  • Water droplets

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Mustafa, Z., Pilidis, P., & Teixeira, J. A. A. (2005). CFD aerodynamic investigation of air-water trajectories on rotor-stator blade of an axial compressor. In Proceedings of the ASME Power Conference, 2005 (Vol. PART B, pp. 1167-1173). [PWR2005-50069]

CFD aerodynamic investigation of air-water trajectories on rotor-stator blade of an axial compressor. / Mustafa, Zainol; Pilidis, Pericles; Teixeira, Joao A Amaral.

Proceedings of the ASME Power Conference, 2005. Vol. PART B 2005. p. 1167-1173 PWR2005-50069.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mustafa, Z, Pilidis, P & Teixeira, JAA 2005, CFD aerodynamic investigation of air-water trajectories on rotor-stator blade of an axial compressor. in Proceedings of the ASME Power Conference, 2005. vol. PART B, PWR2005-50069, pp. 1167-1173, 2005 ASME Power Conference, Chicago, IL, 5/4/05.
Mustafa Z, Pilidis P, Teixeira JAA. CFD aerodynamic investigation of air-water trajectories on rotor-stator blade of an axial compressor. In Proceedings of the ASME Power Conference, 2005. Vol. PART B. 2005. p. 1167-1173. PWR2005-50069
Mustafa, Zainol ; Pilidis, Pericles ; Teixeira, Joao A Amaral. / CFD aerodynamic investigation of air-water trajectories on rotor-stator blade of an axial compressor. Proceedings of the ASME Power Conference, 2005. Vol. PART B 2005. pp. 1167-1173
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