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Centrifugal Compressors: A Strategy for Aerodynamic Design and Analysis

By
Ronald H. Aungier
Ronald H. Aungier
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ISBN:
9780791800935
No. of Pages:
328
Publisher:
ASME Press
Publication date:
2000

This chapter, and the following three chapters, address techniques for internal flow field analysis that are useful in supporting the aerodynamic design of centrifugal compressors. Here, a method for quasi-three-dimensional inviscid flow analysis in vaned and vaneless annular passages will be reviewed. As discussed in Chapter 3, Section 3.3., quasi-three-dimensional flow analysis employs two-dimensional flow analysis, with interaction between them, to approximate the three-dimensional flow. The concept is generally credited to Wu (1952) and has been used extensively for centrifugal compressor internal flow analysis. The present analysis technique is basically unpublished, although it is mentioned in Aungier (1988b), where its...

Nomenclature
Subscripts
Superscripts
12.1
Fluid Dynamics Models
12.2
Gas Path Geometry
12.3
The Hub-to-Shroud Flow Governing Equations
12.4
Conservation of Mass and Momentum
12.5
Repositioning Stream Surfaces
12.6
The First Iteration
12.7
Choked Flow
12.8
The Blade-to-Blade Flow Governing Equations
12.9
Linearized Blade-to-Blade Flow
12.10
Numerical Solution for the Stream Function
12.11
Iteration for Gas Density
12.12
Quasi-Three-Dimensional Flow
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