Gaseous Detonation Physics and Its Universal Framework Theory

ISBN-13: 9789811970016 / Angielski / Twarda / 2022 / 273 str.

Zonglin Jiang; Honghui Teng

Opis

This book highlights the theories and research progress in gaseous detonation research, and proposes a universal framework theory that overcomes the current research limitations. Gaseous detonation is an extremely fast type of combustion that propagates at supersonic speed in premixed combustible gas. Being self-sustaining and self-organizing with the unique nature of pressure gaining, gaseous detonation and its gas dynamics has been an interdisciplinary frontier for decades. The research of detonation enjoyed its early success from the development of the CJ theory and ZND modeling, but phenomenon is far from being understood quantitatively, and the development of theories to predict the three-dimensional cellular structure remains a formidable task, being essentially a problem in high-speed compressible reacting flow. This theory proposed by the authors’ research group breaks down the limitation of the one-dimensional steady flow hypothesis of the early theories, successfully correlating the propagation and initiation processes of gaseous detonation, and realizing the unified expression of the three-dimensional structure of cell detonation. The book and the proposed open framework is of high value for researchers in conventional applications such as coal mine explosions and chemical plant accidents, and state-of-the-art research fields such as supernova explosion, new aerospace propulsion engines, and detonation-driven hypersonic testing facilities. It is also a driving force for future research of detonation.

Spis treści

Chap. 1 Introduction

1.1 Origin and cognition of gaseous detonation

1.2 Explosion, deflagration and detonation waves

1.3 Methodology of gaseous detonation research

1.4 Critical physical phenomena of gaseous detonation

 

Chap. 2 Mathematical equations and computational methods

2.1 Fundamental theories of gaseous detonation

2.2 Mathematical and physical models

2.3 Governing equations and computational methods

2.4 Multi-dimensional simulation of detonation and its analysis

 

Chap. 3 Classical theories of gaseous detonations and dynamic parameters

3.1 Chapman–Jouguet theory

3.2 Zel'dovich–von Neumann–Döring model

3.3 Weak initiation through deflagration to detonation transition

3.4 Direct initiation through strong ignition source

3.5 SWACER theory of weak and strong initiations

3.6 Dynamic parameters and its discussion

 

Chap. 4 Cellular detonation features and experimental observations

4.1 Multi-wave detonation fronts and cellular features

4.2 Structural evolution of propagating cellular detonation

4.3 Reflection and diffraction of cellular detonation

4.4 Bifurcation models of cylindrical cellular detonation

4.5 Propagation of irregular detonations

 

Chap. 5 Universal framework theory for initiation and propagation of regular gaseous detonation

5.1 Introduction

5.2 Physical mechanism of hot spot initiation

5.3 Combustion reaction zone and its evolution

5.4 Critical initiation state and characteristic parameters

5.5 Critical propagation state and statistical features of detonation cells

5.6 Averaged cell length and half-cell rule

5.7 Ignition delayed time and its correlation with cell length

5.8 Application of universal framework theory

5.9 Remarks on universal framework theory

 

Chap. 6 Structures and stationary rules of oblique detonations

6.1 Conservation laws and polar analysis of oblique detonations

6.2 Initiation structure of wedge-induced oblique detonation waves

6.3 Multi-wave structures and surface instability

6.4 Oblique detonation waves in realistic inflow conditions

6.5 Effects of rear expansion wave derived from finite-length wedges

6.6 Effects of blunt body on the initiation

 

Chap. 7 Engineering applications of gaseous detonation phenomena

7.1 Thermal analysis of detonation-based combustion process

7.2 Propulsion technologies based on detonation waves

7.3 Gaseous detonation driven high-enthalpy shock tunnels

O autorze

Zonglin Jiang works as a professor at the Institute of Mechanics, Chinese Academy of Sciences. Prof. Jiang is an expert on detonation and gas dynamics. He has created and fostered the group of shock and detonation physics in the institute of Mechanics, Chinese Academy of Sciences, and served as the director of state key laboratory of high temperature gas dynamics for 15 years. He has been rewarded the AIAA ground testing award, the second-class National Award for Technological Invention. His team has been rewarded outstanding scientific and technological achievement award of Chinese Academy of Sciences. E-mail: zljiang@imech.ac.cn 

Honghui Teng works as a professor at Beijing Institute of Technology. Prof. Teng is an expert on gaseous detonation and its application. As a major contributor, he has been rewarded outstanding scientific and technological achievement award of Chinese Academy of Sciences. He has been selected to be a member of the Youth Innovation Promotion Association of the Chinese Academy of Sciences and has been rewarded the outstanding young scientist project of Natural Science Foundation of China. E-mail: hhteng@bit.edu.cn