U.S.-Argentina Cooperative Research: Catastrophic Instabilities in Square Wave Detonations

美国-阿根廷合作研究：方波爆炸中的灾难性不稳定性

• 批准号: 9016555
• 负责人: Rodolfo Rosales
• 金额: $ 1.1万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1993-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9016555&HistoricalAwards=false
• 关键词: U.S.; Argentina; Cooperative; Research; Catastrophic

This award will support Professor Rodolfo Rosales of MIT in a research collaboration with Professor Pablo M. Jacovkis of the University of Buenos Aires, Argentina. The researchers intend to carry out research in the stability theory of square wave detonations. The problem of propagation of reacting shocks in a gaseous combustible media (detonation waves) has interested researchers since the end of the last century. The first models for such propagation were proposed at the beginning of the century but it was soon realized that they were too simple and did not take into account the very rich structure of detonation waves. Since the early 1950's researchers have attempted to understand the theory by investigating the stability of plane detonations. In particular, the Square Wave Model allows for a linearized stability analysis that is relatively simple but leads to contradictory results and "catastrophic instabilities". The researchers intend, through a combination of numerical and analytical studies, to investigate the reasons for such badly believed stability for this model. The project will combine the experience of Prof. Rosales in analytical techniques with the computational background of Prof. Jacovkis.

该奖项将支持麻省理工学院的Rodolfo Rosales教授， 与巴勃罗M.雅科夫基斯 布宜诺斯艾利斯大学，阿根廷。 研究人员 打算进行稳定性理论的研究， 方波爆炸 气体中反应激波的传播问题 可燃介质（爆轰波）引起了研究人员的兴趣 从上个世纪末开始。 第一个这样的模型 传播是在世纪初提出的， 很快就意识到它们太简单了， 考虑到爆炸的丰富结构， 波 自20世纪50年代初以来，研究人员一直试图 通过研究稳定性来理解理论 飞机爆炸 特别是方波模型 允许线性化稳定性分析， 简单，但导致矛盾的结果和“灾难性的” 不稳定性”。 研究人员打算通过结合 的数值和分析研究，调查 这种模式的稳定性令人难以置信。 该项目将联合收割机的经验，罗萨莱斯教授在 分析技术与计算背景， 雅各布斯教授