CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
|
|
|
|
Propagation Mechanism of Cylindrical Cellular Detonation |
HAN Wen-Hu, WANG Cheng**, NING Jian-Guo |
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081
|
|
Cite this article: |
HAN Wen-Hu, WANG Cheng, NING Jian-Guo 2012 Chin. Phys. Lett. 29 108201 |
|
|
Abstract We investigate the evolution of cylindrical cellular detonation with different instabilities. The numerical results show that with decreasing initial temperature, detonation becomes more unstable and the cells of the cylindrical detonation tend to be irregular. For stable detonation, a divergence of cylindrical detonation cells is formed eventually due to detonation instability resulting from a curved detonation front. For mildly unstable detonation, local overdriven detonation occurs. The detonation cell diverges and its size decreases. For highly unstable detonation, locally driven detonation is more obvious and the front is highly wrinkled. As a result, the diverging cylindrical detonation cell becomes highly irregular.
|
|
Received: 01 April 2012
Published: 01 October 2012
|
|
PACS: |
82.40.Fp
|
(Shock wave initiated reactions, high-pressure chemistry)
|
|
47.40.Nm
|
(Shock wave interactions and shock effects)
|
|
|
|
|
[1] Wang G, Zhang D L and Liu K X 2007 Chin. Phys. Lett. 24 3563 [2] Lee J H S 2008 The Detonation Phenomenon (Cambridge: Cambridge University) [3] Fickett W and Wood W W 1966 Phys. Fluids 9 903 [4] Bourlioux A, Majda A J and Roytburd V 1991 SIAM J. Appl. Math. 51 303 [5] Papalexandris M V, Leonard A and Dimotakis P E 1997 J. Comput. Phys. 134 31 [6] He L and Clavin P 1994 J. Fluid Mech. 277 227 [7] Sharpe G J 2000 Phys. Fluids 12 3007 [8] Lee J H S 1984 Annu. Rev. Fluid Mech. 16 311 [9] Ng H D 2005 PhD Dissertation (McGill University) [10] Erpenbeck J J 1966 Phys. Fluids 9 1293 [11] Watt S D and Sharpe G J 2005 J. Fluid Mech. 522 329 [12] Lee J H S and Lee B 1965 Phys. Fluids 8 2148 [13] Wang C, Jiang Z L, Hu Z M and Han G L 2008 Appl. Math. Mech. 29 1487 [14] Dong G and Fan B C 2011 Chin. J. High Press. Phys. 25 193 [15] Taki S and Fujiwara T 1978 AIAA J. 16 73 [16] Wang C, Ma T B and Lu J 2010 Sci. Chin. Phys. Mech. Astron. 53 269 [17] Tan S R, Wang C, Shu C W and Ning J G 2012 J. Comput. Phys. 231 2510 [18] Wang C, Han W H, Ning J G and Yang Y Y 2012 Safety Sci. 50 709 [19] Han G L, Jiang Z L, Wang C and Zhang F 2008 Chin. Phys. Lett. 25 2125 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|