This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Performance Prediction Method for Diffusing Passages with Arbitrary Shapes
Annotation ability available
Sector:
Language:
English
Abstract
The paper describes a general method, based on a simplified flow model, for the analysis of compressible, unseparated and non-uniform flows in diffusing ducts of arbitrary geometry and inlet flow conditions. The method has been tested against available detailed experimental data of conical and straight rectangular diffusers, and was able to predict (with an acceptable degree of accuracy) the likely performance of diffusing flows at various values of inlet Mach numbers.
Authors
Topic
Citation
Al-Zubaidy, S., "Performance Prediction Method for Diffusing Passages with Arbitrary Shapes," SAE Technical Paper 921669, 1992, https://doi.org/10.4271/921669.Also In
References
- Reneau, L.R. Johnston, J.P. Kline, S.J. “Performance and Design of Straight Two Dimensional Diffusers” Journal of Basic Engineering, Trans. ASME 89 1967 141 150
- Kline, S.J. “Review: Effect of Inlet Conditions on Conical-Diffuser Performance” Journal of fluid Engineering, Trans. of ASME 103 1981
- Copp, M.R. “Effects of Inlet Wall Contours on the Pressure recovery of a 10 degrees, 10 inch inlet diameter conical diffuser” NACA R&M ML51 Ella 1951
- Ghose, S. Kline, S.J. “The Computation of Optimum Pressure Recovery in Two Dimensional Diffusers” Journal of Fluids Engineering, Trans. ASME 100 1978
- Al-Zubaidy, S. J. “Performance Prediciton Method for Two Dimensional Diffusers” Transport Phenomena in Rotating Machinery Hemisphere Publishing Corporation 85 93
- Schlichting, H. “Boundary Layer Theory” McGraw-Hill New York 1955
- Balje, O.E. “Loss and Flow Path Studies on Centrifugal Compressors-Part I” Journal of Engineering for Power, Trans. ASME 275 286 1970
- Townsend, A.A. “The Behavior of a Turbulent Boudnary Layer Near Separation” Journal of Fluid Mechanics 12 536 554 1962
- Al-Modafar, M. “Fortran Program for Calculating the Performance Parameters in Two Dimensional Diffusers” Technical Report THP/MA23/81 The Hatfield Polytechnic Inst. August 1981
- Van De Woenstine, R.V. Fox, R.W. “An experimental Investigation on the Effect of Subsonic Inlet Mach Number on the Performance of Conical Diffusers” Int. J. Mech. Sci 8 759 1966
- Little, B. H. Wilbur, S. W. “Performance and Boundary Layer Data from 12 and 23 deg Conical Diffusers of Area Ratio 2.0 at Mach Numbers up to choking and Reynolds Number up to 7.5 x 10 6 ” NACA Report 1201 1954
- Runstadler, F.W Dolan, F.X. “Further Data on the Pressure Recovery Performance of Straight-Channel, Plane Divergence Diffusers at High Subsonic Mach Numbers” ASME Paper No. 73-FE-S 1973