Subsonic Combustion Ramjet Design (SpringerBriefs in Applied Sciences and Technology)

✍ Scribed by Antonella Ingenito

• Publisher: Springer
• Year: 2021
• Tongue: English
• Leaves: 117
• Edition: 1st ed. 2021
• Category: Library

✦ Synopsis

This book presents a step-by-step methodology for the design of ramjet engines. It explores ramjet combustion, provides guidelines on how to size the engines, and discusses performance analysis.

The book begins with an introduction to ramjet design, including fundamental definitions in the field. It then discusses ramjet engine performance, and fuels which can be used. Several types of ramjet engines are then explored, and guidelines for their design are presented, including flame holders, injectors, and combustors. Finally, the book concludes with a discussion of the types of materials which should be used for ramjet engines. 

This book is of interest to engine designers and engineers, researchers, and graduate students, as it collates research in a succinct, clear guide to the issue of designing ramjet engines. 

✦ Table of Contents

Contents
Nomenclature
Greek Symbol
Greek Symbol
Subscript and Superscript
1 Introduction
References
2 Fundamentals of Ramjet Engines
References
3 Design of Supersonic/Hypersonic Vehicles
3.1 Küchemann tau Figure of Merit
3.2 Breguet Range for Airbreathing Supersonic/Hypersonic Vehicles
3.3 Hypersonic Convergence Equations
3.3.1 Weights and Volumes Hypersonic Convergence
References
4 Ramjet Engines Performance
4.1 Ideal Ramjet Cycle
4.2 Real Ramjet Cycle
4.3 Thrust Parameters and Efficiencies
References
5 Ramjets Fuels
5.1 Proprieties of Ramjet Fuels
5.2 Fuel Performance Comparison
5.3 Ignition Delay Time for Ramjet Fuels
5.4 Flame Speed for Ramjet Fuels
References
6 Flameholder Design Guidelines
6.1 Flameholder Geometries
6.2 Theoretical Analysis of V-type Flameholder Geometry
6.3 Flame Stability
6.4 Investigation of Flameholder Blockage Area Ratio
6.5 Some Examples: Multistage V-gutter Flameholders
6.5.1 Two Parallel Lines of Gutters
6.5.2 Three Parallel Lines of Gutters
6.5.3 Staggered Gutters
6.5.4 Three Rows of Staggered Gutters
6.5.5 Other Configurations
6.5.6 Rake- and Gutter-Type Flameholders
6.5.7 Grid Type Flameholder
6.5.8 Annular Flameholders
6.5.9 Investigation of Flameholder V Angle and Width
References
7 Injector Design Guidelines
7.1 Investigation of Injector Number, Size and Radial Distribution in Flame Holders
7.2 Droplets Evaporation Time
7.3 Fuel Jet Penetration and Breakup
7.4 Calculation of Fuel Spatial Distribution with the Distance from the Flameholder
7.5 Experimental Analysis of Injector Radial Distance from the Outer Wall
References
8 Combustor Design Guidelines
8.1 Cylindrical Combustion Chamber Sizing
Reference
9 Igniter Design Guidelines
9.1 Flammability Limits
9.2 Ignition Energy
References
10 Step by Step RJ Design Methodology
11 Material Selection for Ramjet Engines
11.1 Operation Temperatures for Materials
11.2 Ramjet Material Requirements
References
12 Conclusions