Numerical simulation of three-dimensional gas detonation

Wang, C; Lü, Jie; Ye, T

doi:10.1088/1742-6596/96/1/012029

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…14c. It can be seen from the process of transformation of diagonal and rectangular mode that, movement of triple lines plays a very important role in the process' 4 ' u " 12] . …”

Section: ) Analysis Of the Resultsmentioning

confidence: 99%

Equation Chapter 1 Section 1 Propagation Mechanism of Non-steady Gaseous Detonation

Wang¹,

Ma²,

Ye³

2008

International Journal of Nonlinear Sciences and Numerical Simulation

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Detection and removal of antipersonnel landmines is an important worldwide concern. A huge number of landmines has been deployed over the last twenty years, and demining will take several more decades, even if no more mines were deployed in future. An adequate mine-clearance rate can only be achieved by using new technologies such as improved sensors, efficient manipulators and mobile robots. This paper presents some basic ideas on the configuration of a mobile system for detecting and locating antipersonnel landmines efficiently and effectively. This paper describes the main features of the overall system, which consists of a sensor head that can detect certain landmine types, a manipulator to move the sensor head over large areas, a locating system based on a global-positioning system, a remote supervisor computer and a legged robot used as the subsystems' carrier. The whole system has been configured to work in a semi-autonomous mode with a view also to robot mobility and energy efficiency.

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“…14c. It can be seen from the process of transformation of diagonal and rectangular mode that, movement of triple lines plays a very important role in the process' 4 ' u " 12] . …”

Section: ) Analysis Of the Resultsmentioning

confidence: 99%

Equation Chapter 1 Section 1 Propagation Mechanism of Non-steady Gaseous Detonation

Wang¹,

Ma²,

Ye³

2008

International Journal of Nonlinear Sciences and Numerical Simulation

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“…While there are undoubtedly similarities between 2D numerical simulations and experimental researches for detonation initiation and propagation in supersonic combustible mixtures [37] , the mechanism might be better analyzed and explained with 3D calculations. The simplified reaction models are usually utilized in 3D simulations of detonation combustion [40][41][42][43][44][45][46][47] . However, some fine features which normally characterized by chain-branching reaction processes cannot be resolved through these simplified models.…”

Section: Introductionmentioning

confidence: 99%

Adaptive mesh refinement based simulations of three-dimensional detonation combustion in supersonic combustible mixtures with a detailed reaction model

Cai

Liang

Deiterding

et al. 2016

International Journal of Hydrogen Energy

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Although the overdrive degree of the 3D detonation is smaller than that of the 2D case, more complex and irregular detonation fronts can be observed in the 3D case compared with the 2D detonation, which is likely because of the propagation of transverse waves and collisions of triple lines in multi-directions in 3D detonations. After the hot jet is shut down, the newly formed 2D Chapman-Jouguet (CJ) detonation has almost the same characteristic parameters with the corresponding 3D case, indicating that the 2D instabilities can be perfectly preserved in 3D simulations. However, the slapping wave reflections on the side walls in the 3D detonation result in the second oscillation along with the main one, which presents stronger instabilities compared with the 2D case. The inherent stronger 3D instabilities is also verified through the quantitative comparison between the 2D and 3D cases where the 3D result always shows stronger fluctuations than the 2D case.

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Numerical simulation of three-dimensional gas detonation

Cited by 2 publications

References 8 publications

Equation Chapter 1 Section 1 Propagation Mechanism of Non-steady Gaseous Detonation

Equation Chapter 1 Section 1 Propagation Mechanism of Non-steady Gaseous Detonation

Adaptive mesh refinement based simulations of three-dimensional detonation combustion in supersonic combustible mixtures with a detailed reaction model

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