Direct Method for Optimization of a Centrifugal Compressor Vaneless Diffuser

[+] Author and Article Information
Yu-Tai Lee

Naval Surface Warfare Center, Carderock Division, West Bethesda, MD 20817

Lin Luo

The Pennsylvania State University, University Park, PA 16801

Thomas W. Bein

Naval Surface Warfare Center, Annapolis Detachment, Annapolis, MD 21402

J. Turbomach 123(1), 73-79 (Feb 01, 2000) (7 pages) doi:10.1115/1.1308571 History: Received February 01, 2000
Copyright © 2001 by ASME
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Generic air-conditioning compressor
Grahic Jump Location
Schematics of the vaneless diffuser geometry
Grahic Jump Location
Typical computational grid for turbulent plane diffuser
Grahic Jump Location
Optimization of plane diffuser and comparison with 7: (A) diffuser shapes; (B) wall shear stress
Grahic Jump Location
Optimization of vaneless diffuser: (A) three-point spline; (B) six-point spline (Cp=static pressure rise, ω=total pressure loss)
Grahic Jump Location
Comparison of three-point and six-point spline shapes
Grahic Jump Location
Impact of the weighting coefficients in Eq. (4)
Grahic Jump Location
Computational grids for the original shape and the final shape using conjugate gradient method
Grahic Jump Location
Selected intermediate shroud shapes through 26 iterations from the original curve
Grahic Jump Location
Predicted flow path: (A) on the front plate; (B) on a radial section
Grahic Jump Location
Predicted total velocity contours
Grahic Jump Location
Predicted static pressure contours
Grahic Jump Location
Measured compressor efficiency for the original and the modified diffusers
Grahic Jump Location
Measured system energy consumption for the original and the modified diffusers
Grahic Jump Location
Initial diffuser shape and grid after the first gradient cycle
Grahic Jump Location
Diffuser shapes and grids for evaluating gradient vector




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 Journal Articles
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