Centrifugal Compressors: A Strategy for Aerodynamic Design and Analysis

Table Of Contents

 

Preface


1. Introduction

  • 1.1 The Centrifugal Compressor Stage

  • 1.2 Dimensionless Parameters

  • 1.3 Performance Characteristics

  • 1.4 Similitude

  • 1.5 Units and Conventions

 

2. Thermodynamics

  • 2.1 Fundamental Laws of Thermodynamics

  • 2.2 Head and Efficiency

  • 2.3 The Gas Equation of State

  • 2.4 Thermally Perfect Gases: The Caloric Equation of State

  • 2.5 The Thermal Equation of State For Real Gases

  • 2.6 Thermodynamic Properties of Real Gases

  • 2.7 Thermally and Calorically Perfect Gases

  • 2.8 Perfect Gas Models Applied to Real Gases

  • 2.9 Component Performance and Losses

  • 2.10 Approximate Liquid and Two-Phase Flow Models

  • 2.11 Equilibrium Flash or Liquid Knockout Calculations

 

3. Fluid Mechanics

  • 3.1 Flow in a Rotating Coordinate System

  • 3.2 Governing Equations for Adiabatic Inviscid Compressible Flow

  • 3.3 Adiabatic Inviscid Compressible Flow Analysis

  • 3.4 Boundary Layer Analysis

  • 3.5 Vector Operators

 

4. The Impeller Work Input

  • 4.1 The Slip Factor

  • 4.2 The Impeller Distortion Factor

  • 4.3 Clearance Gap Flows

  • 4.4 Windage and Disk Friction Work

  • 4.5 Leakage Work

  • 4.6 Recirculation Work

 

5. One-Dimensional Aerodynamic Performance Analysis

  • 5.1 One-Dimensional Flow Analysis

  • 5.2 Inlet Guide Vane Performance

  • 5.3 Impeller Performance

  • 5.4 Vaneless Annular Passage Performance

  • 5.5 Vaned Diffuser Performance

  • 5.6 Return Channel Performance

  • 5.7 Volute and Collector Performance

  • 5.8 Overall Stage Predictions

  • 5.9 Multistage Compressor Analysis

 

6. Preliminary Aerodynamic Design and Component Sizing

  • 6.1 The Preliminary Design Strategy

  • 6.2 Simple Performance Correlations

  • 6.3 Component Matching

  • 6.4 A Computerized Preliminary Design System

  • 6.5 Impeller Sizing

  • 6.6 Vaneless Diffuser Sizing

  • 6.7 Vaned Diffuser Sizing

  • 6.8 Return System Sizing

  • 6.9 Volute Sizing

  • 6.10 Implementation of the Design System

 

7. General Gas Path and Impeller Design

  • 7.1 The General Gas Path Design Strategy

  • 7.2 Useful Curve Forms for Gas Path Design

  • 7.3 End-Wall and Quasi-Normal Construction

  • 7.4 Blade Mean Line Construction

  • 7.5 Blade Surface Construction

  • 7.6 Blade Passage Throat Area

  • 7.7 The Blade Leading Edge

  • 7.8 A Computerized Gas Path Design System

  • 7.9 Impeller Detailed Design

 

8. Vaneless Diffuser Design

  • 8.1 Geometric Construction

  • 8.2 The Design Procedure

  • 8.3 Rotating Stall Considerations

 

9. Vaned Diffuser Design

  • 9.1 Vaned Diffuser Performance Parameters

  • 9.2 Design Criteria

  • 9.3 Vaned Diffuser Stall

  • 9.4 Vaned Diffuser Inlet Design

  • 9.5 Vaned Diffuser Sizing

  • 9.6 Vane Design

  • 9.7 Analysis of The Design

  • 9.8 A Computerize Design System

 

10. Return System Design

  • 10.1 Return System Gas Path Construction

  • 10.2 Return Channel Vane Construction

  • 10.3 A Computerized Interactive Design System

  • 10.4 Return System Design Recommendations

 

11. Volute Design

  • 11.1 Geometrical Construction

  • 11.2 Fundamental Design Concepts

  • 11.3 Aerodynamic Design Considerations

 

12. Quasi-Three-Dimensional Flow Analysis

  • 12.1 Fluid Dynamic 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

 

13. Potential Flow Analysis in the Blade-To-Blade Plane

  • 13.1 Definition of the Problem

  • 13.2 The Stream Function Solution

  • 13.3 The Gas Density Solution

  • 13.4 Some Useful Features

  • 13.5 Typical Results

 

14. Time-Marching Analysis of the Blade-To-Blade Plane Flow

  • 14.1 Definition of the Problem

  • 14.2 Boundary Conditions

  • 14.3 Fundamental Concepts in Numerical Stability

  • 14.4 Numerical Stability for the Blade-To-Blade Flow Application

  • 14.5 The Solution Procedure

  • 14.6 Typical Results

 

15. Boundary Layer Analysis

  • 15.1 Two-Dimensional Laminar Boundary Layer Analysis

  • 15.2 Two-Dimensional Turbulent Boundary Layer Analysis

  • 15.3 Blade Passage Profile Losses

  • 15.4 End-Wall Turbulent Boundary Layer Analysis

 

Answers to the Exercises


References


About the Author


Index