Plane and spherical detonation waves in solid explosives.

New solutions are presented for non-stationary boundary layers induced by planar, cylindrical and spherical Chapman-Jouguet (C-J) detonation waves. The numerical results show that the Prandtl number ( Pr ) has a very significant influence on the boundary-layer-flow structure. A comparison with available time-dependent heat-transfer measurements in a planar geometry in a 2H 2 + O 2 mixture shows much better agreement with the present analysis than has been obtained previously by others. This lends confidence to the new results on boundary layers induced by cylindrical and spherical detonation waves. Only the spherical-flow analysis is given here in detail for brevity.

Effect of debris fragments on direct initiation of spherical detonation waves in stoichiometric oxygen/hydrogen mixtures

Proceedings of the Combustion Institute ◽

10.1016/j.proci.2006.08.111 ◽

2007 ◽

Vol 31 (2) ◽

pp. 2437-2443 ◽

Cited By ~ 1

Author(s):

Makoto Komatsu ◽

Kazuyoshi Takayama ◽

Kiyonobu Ohtani ◽

Tsutomu Saito

Keyword(s):

Detonation Waves ◽

Direct Initiation ◽

Spherical Detonation ◽

Hydrogen Mixtures

Spherical detonation waves in media with volumetric viscosity

Journal of Applied Mechanics and Technical Physics ◽

10.1007/bf00851162 ◽

1978 ◽

Vol 18 (6) ◽

pp. 834-842 ◽

Cited By ~ 2

Author(s):

G. M. Lyakhov ◽

V. N. Okhitin

Keyword(s):

Detonation Waves ◽

Spherical Detonation

Attenuation of spherical detonation waves under strong luminescence conditions

Combustion Explosion and Shock Waves ◽

10.1007/bf00750720 ◽

1986 ◽

Vol 22 (1) ◽

pp. 121-123

Author(s):

V. V. Shuvalov

Keyword(s):

Detonation Waves ◽

Spherical Detonation ◽

Strong Luminescence

The effect of slight confinement on the detonation waves in solid explosives

Symposium (International) on Combustion ◽

10.1016/s0082-0784(57)80089-7 ◽

1957 ◽

Vol 6 (1) ◽

pp. 642-648

Author(s):

L. Deffet ◽

J. Boucart

Keyword(s):

Detonation Waves ◽

Solid Explosives

Innovative Potential of Gas Detonation

Science and innovation ◽

10.15407/scine16.06.104 ◽

2020 ◽

Vol 16 (6) ◽

pp. 104-110

Author(s):

Yu.A. Kharlamov ◽

◽

L.G. Polonsky ◽

N.O. Balytska ◽

S.A. Klymenko ◽

...

Keyword(s):

Mechanical Engineering ◽

Detonation Waves ◽

Practical Application ◽

Problem Statement ◽

Gas Detonation ◽

Safety Requirements ◽

The World ◽

Solid Explosives ◽

Innovative Potential ◽

The Creation

Introduction. Explosive technologies are widely used in the extraction industries, in mechanical engineering for welding, hardening, etc. However, the use of solid explosives is limited, above all, by safety requirements. Therefore, the use of a safer and more convenient source of energy, gas detonation, is attracting much attention. Pressures, temperatures, and velocities in detonation waves or shock waves in gases close to them in terms of intensity, as well as the pulse nature of the influence of these factors determine a high potential of their technical and technological use. Problem Statement. In many technical systems, deflagration modes of burning prevail. However, a more thermodynamically advantageous method of combustion and conversion of chemical energy of fuel into useful work is the detonation mode of combustion. This ensures the feasibility of development, research and wider implementation of various technologies and devices using controlled gas detonation. Purpose. Systematization and analysis of the main trends in the development and design of detonation gas technologies and devices in Ukraine and throughout the world. Materials and Methods. Systematization and analysis of scholarly research publications and patents on the practical application of gas detonation in various sectors of the economy. Results. The tendencies of practical use of gas detonation in different branches of industry have been revealed and analyzed. Priority developments in the technological application of the method in mechanical engineering have been performed in Ukraine. However, in many technical areas Ukraine has fallen behind the world leaders in terms of the creation of detonation gas technologies and devices. Conclusions. For the practical use of the potential of gas detonation, it is necessary to develop fundamentally new devices that ensure reliable, safe, and controlable generation and propagation of detonation waves in gases and sprayed fuels. Gas detonation is promising for the creation of more advanced technologies and equipment.

Innovative Potential of Gas Detonation

Nauka ta innovacii ◽

10.15407/scin16.06.105 ◽

2020 ◽

Vol 16 (6) ◽

pp. 105-112

Author(s):

Yu.A. Kharlamov ◽

◽

L.G. Polonsky ◽

N.O. Balytska ◽

S.A. Klymenko ◽

...

Keyword(s):

Mechanical Engineering ◽

Detonation Waves ◽

Practical Application ◽

Problem Statement ◽

Gas Detonation ◽

Safety Requirements ◽

The World ◽

Solid Explosives ◽

Innovative Potential ◽

The Creation

Introduction. Explosive technologies are widely used in the extraction industries, in mechanical engineering for welding, hardening, etc. However, the use of solid explosives is limited, above all, by safety requirements. Therefore, the use of a safer and more convenient source of energy, gas detonation, is attracting much attention. Pressures, temperatures, and velocities in detonation waves or shock waves in gases close to them in terms of intensity, as well as the pulse nature of the influence of these factors determine a high potential of their technical and technological use. Problem Statement. In many technical systems, deflagration modes of burning prevail. However, a more thermodynamically advantageous method of combustion and conversion of chemical energy of fuel into useful work is the detonation mode of combustion. This ensures the feasibility of development, research and wider implementation of various technologies and devices using controlled gas detonation. Purpose. Systematization and analysis of the main trends in the development and design of detonation gas technologies and devices in Ukraine and throughout the world. Materials and Methods. Systematization and analysis of scholarly research publications and patents on the practical application of gas detonation in various sectors of the economy. Results. The tendencies of practical use of gas detonation in different branches of industry have been revealed and analyzed. Priority developments in the technological application of the method in mechanical engineering have been performed in Ukraine. However, in many technical areas Ukraine has fallen behind the world leaders in terms of the creation of detonation gas technologies and devices. Conclusions. For the practical use of the potential of gas detonation, it is necessary to develop fundamentally new devices that ensure reliable, safe, and controlable generation and propagation of detonation waves in gases and sprayed fuels. Gas detonation is promising for the creation of more advanced technologies and equipment.

Spherical detonation waves in a solid multicomponent viscoplastic medium

Soviet Applied Mechanics ◽

10.1007/bf00888551 ◽

1986 ◽

Vol 22 (5) ◽

pp. 490-495 ◽

Cited By ~ 1

Author(s):

G. M. Lyakhov ◽

I. A. Luchko ◽

V. A. Plaksii ◽

N. S. Remez ◽

A. V. Krymskii

Keyword(s):

Viscoplastic Medium ◽

Detonation Waves ◽

Spherical Detonation

Spherical detonation waves of the Chapman–Jouguet combustion model

Applied Mathematics Letters ◽

10.1016/j.aml.2019.106166 ◽

2020 ◽

Vol 103 ◽

pp. 106166

Author(s):

Sisi Xie ◽

Geng Lai

Keyword(s):

Combustion Model ◽

Detonation Waves ◽

Spherical Detonation

EFFECT OF ADDITIVES ON FORMATION OF SPHERICAL DETONATION WAVES IN HYDROGEN-OXYGEN MIXTURES

AIAA Journal ◽

10.2514/3.1954 ◽

1963 ◽

Vol 1 (8) ◽

pp. 1915-1918 ◽

Cited By ~ 24

Author(s):

ANDREJ MACEK

Keyword(s):

Detonation Waves ◽

Effect Of Additives ◽

Spherical Detonation