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| The numerical study on the effect of energy absorption of sand-walls on similarity laws in chemical explosion |
| Received:December 06, 2008 |
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| DOI：10.7511/jslx20094025 |
| KeyWord:scale experiment similarity laws shock wave chemical explosion numerical simulation |
| Author | Institution |
| 王宏亮 |
西北核技术研究所,西安 |
| 田宙 |
西北核技术研究所,西安 |
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| Abstract: |
| The chemical explosion with the same energy density and in the same medium, satisfies the similarity laws in explosion. Scale experiment is widely adopted as an economical technique in this kind of experiment. The sand-walls usually are applied to assure safety in experiments, which can absorb explosion energy and weaken the shock wave. For studying the effect of energy absorption of sand-walls on similarity laws in explosion, 1_D numerical model of chemical explosion is set up and three physics models under the different scale ratio (1∶1/1∶5/1∶10) are simulated using the two phase program. The numerical results show that chemical explosion no longer satisfies the similarity laws because of the effect of energy absorption of sand-walls. |