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| 初始扰动对于气液界面Rayleigh-Taylor不稳定性发展的影响 | |
| 引用本文： | 黄文斌,邹立勇,刘金宏,谭多望,张光异. 初始扰动对于气液界面Rayleigh-Taylor不稳定性发展的影响[J]. 气动实验与测量控制, 2010, 0(3): 39-41,66 |
| 作者姓名： | 黄文斌 邹立勇 刘金宏 谭多望 张光异 |
| 作者单位： | 中国工程物理研究院流体物理研究所冲击波物理与爆轰物理国防科技重点实验室,四川绵阳621900 |
| 基金项目： | 国防科技工业技术基础质量与可靠性科研项目（项目编号：Z112009B004） |
| 摘 要： | 利用果冻实验技术研究几种不同初始扰动的气液界面Rayleigh-Taylor不稳定性发展过程。通过对不同波长和振幅的实验结果进行对比发现：波长是影响界面扰动发展的主要因素,并且在不同阶段影响的模式不同。在线性阶段,波长较短的扰动发展较快;在非线性阶段,则是波长较长的扰动发展较快。 |
| 关 键 词： | Rayleigh-Taylor不稳定性 果冻实验技术 初始扰动 |
Effects of initial perturbations on Rayleigh-Taylor instability growth at gas-liquid interface |
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| Affiliation: | HUANG Wen-bin,ZOU Li-yong,LIU Jin-hong,TAN Duo-wang,ZHANG Guang-sheng(National Key Laboratory of Shock Wave and Detonation Physics,Institute of Fluid Physics,CAEP,Mianyang Sichuan 621900,China) |
| Abstract: | Effects of wavelength and amplitude of periodical 2D cosinusoidal perturbations on Rayleigh-Taylor（RT） instability growth at the gas-liquid interface was investigated.A layer of low-strength,dissolved-in-water-gelatin was employed for modeling the liquid driven with gas explosive mixture products.It is shown that wavelength was a main influence factor on RT instability growth,and short-wavelength perturbations grew more rapidly in the linear stage,but long-wavelength perturbations grew more rapidly in the nonlinear stage. |
| Keywords: | Rayleigh-Taylor instability jelly technique initial perturbation |
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