| 翟金明,王世合,李永池,杨基明.基于主-次激波在变截面管中传播的数值模拟[J].计算力学学报,2010,27(5):925~929 |
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| 基于主-次激波在变截面管中传播的数值模拟 |
| Numerical simulation of primary-secondary shock wavepropagation in tube with varing cross-section |
| 投稿时间：2008-09-07 |
| DOI：10.7511/jslx20105030 |
| 中文关键词: 激波管 数值模拟 爆轰波 |
| 英文关键词:shock tube numerical simulation explosion wave |
| 基金项目:江苏省自然科学基金(BK2008314)资助项目. |
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| 中文摘要: |
| 采用二阶精度的单调迎风中心格式(MUSCL)和非结构自适应网格技术与有限体积形式,对轴对称变截面管道中基于主-次的爆轰波传播过程进行了数值模拟。结果表明,基于主-次的爆轰波传播至目标区时,冲击波流场均匀、稳定,波形良好;适当提高驱动段的爆炸能量,目标区能够获得预想的冲击波超压值和作用时间。 |
| 英文摘要: |
| Numerical simulation has been conducted on the propagation of the explosion wave on the primary-secondary basis in an axisymmetric tube with varying cross section, using the MUSCL with second-order precision, the non-structural, self-adaptable mesh technique, and the finite volume form. The results show that the shock wave flow field is uniform and steady with good waveform when the explosion wave on the primary-secondary basis runs into the target region. Desired overpressure and duration of the shock wave could be obtained if the explosive energy of the driver section is properly increased. |
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