0

Full Content is available to subscribers

Subscribe/Learn More  >

CFD Aerodynamic Investigation of Air-Water Trajectories on Rotor-Stator Blade of an Axial Compressor

[+] Author Affiliations
Zainol Mustafa, Pericles Pilidis, Joao A. Amaral Teixeira

Cranfield University, Bedfordshire, UK

Paper No. PWR2005-50069, pp. 1167-1173; 7 pages
doi:10.1115/PWR2005-50069
From:
  • ASME 2005 Power Conference
  • ASME 2005 Power Conference
  • Chicago, Illinois, USA, April 5–7, 2005
  • Conference Sponsors: Power Division
  • ISBN: 0-7918-4182-0
  • Copyright © 2005 by ASME

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 CFXTASCflow 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.

Copyright © 2005 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In