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Paper Information

Journal:   JOURNAL OF ENERGETIC MATERIALS   FALL 2007-WINTER 2008 , Volume 2 , Number 2; Page(s) 55 To 68.
 
Paper: 

THE EFFECT OF DETONATION FRONT CURVATURE ON PROPAGATION VELOCITY AND REACTION ZONE PROPERTIES

 
 
Author(s):  SOURI H., MAZAHERI K.*
 
* DEPARTMENT OF MECHANICAL ENGINEERING, FACULTY OF ENGINEERING, TARBIAT MODARES UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

In a self sustained detonation, the energy required for leading shock propagation is provided by exothermic reactions at reaction zone. There is a locus at the reaction zone where the particle velocity (with respect to the shock attached frame) is equal to the speed of sound. Flow is supersonic in the downstream of the sonic locus. Therefore, only that part of the reaction zone which located between the leading shock and the sonic locus affects the detonation front dynamics. Variation of detonation front curvature will change the distance of sonic locus from lead shock. Here reactive Euler equations are solved in the reaction zone between sonic locus and leading shock, and a relation derived between detonation propagation velocity (D) and reaction products with detonation front curvature (k). We carry out this analysis by a method that known as "Detonation shock dynamics" (DSD) method for weakly-curved quasi-steady detonation waves. Comparison of the results with direct numerical solution (DSD) of reactive Euler equations shows that the DSD method has very good results for weakly-curved detonations. According to this analysis, increment of curvature lead to detonation velocity reduction and in general D-k curve has a Z-shape with two turning points that upper and lower turning points are associated with detonation extinction an initiation respectively.

 
Keyword(s): DETONATION, DSD, CURVATURE, MULTI-DIMENSIONAL, REACTION ZONE, HIGH EXPLOSIVE
 
 
References: 
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Click to Cite.
APA: Copy

SOURI, H., & MAZAHERI, K. (2008). THE EFFECT OF DETONATION FRONT CURVATURE ON PROPAGATION VELOCITY AND REACTION ZONE PROPERTIES. JOURNAL OF ENERGETIC MATERIALS, 2(2), 55-68. https://www.sid.ir/en/journal/ViewPaper.aspx?id=273756



Vancouver: Copy

SOURI H., MAZAHERI K.. THE EFFECT OF DETONATION FRONT CURVATURE ON PROPAGATION VELOCITY AND REACTION ZONE PROPERTIES. JOURNAL OF ENERGETIC MATERIALS. 2008 [cited 2021May12];2(2):55-68. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=273756



IEEE: Copy

SOURI, H., MAZAHERI, K., 2008. THE EFFECT OF DETONATION FRONT CURVATURE ON PROPAGATION VELOCITY AND REACTION ZONE PROPERTIES. JOURNAL OF ENERGETIC MATERIALS, [online] 2(2), pp.55-68. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=273756.



 
 
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