| 题名 | 基于三维设计的超燃冲压发动机数值模拟与性能分析; Numerical Simulation and Performance Analysis of a Scramjet Based on Three Dimensional Design |
| 作者 | 方骁远 |
| 答辩日期 | 2016-03-18 ; 2015-05-25 |
| 导师 | 邢菲 |
| 关键词 | 超燃冲压发动机 数值模拟 超声速燃烧 推力性能 scramjet numerical simulation supersonic combustion thrust |
| 英文摘要 | 本文以超燃冲压发动机为研究对象，将其中的各部件置于整个发动机的大环境下进行了设计与性能分析。 以流线追踪三维Busemann型面作为进气道，研究了其不启动时的流场特征以及非设计点下的性能。随后将该进气道与隔离段模型相结合进行了数值模拟，结果表明增加隔离段长度可提升极限反压，但长度越长，反压比提升的幅度越小；进气道来流的影响使隔离段在反压作用下的流场呈现不均匀性，反压越高，不均匀性越强，进气道所受的压阻也越大。 在燃烧室设计过程中，以均匀来流为条件分别考察了边界层厚度、狭缝抽吸、凹腔以及喷氢口布置方案对基础燃烧室构型的性能影响，结果表明边界层抽吸可抑制激波串前推；凹腔结构能有助于提升燃烧效率...; A scramjet was investigated with all its parts being designed and analyzed in the environment of the whole engine. A streamline traced Busemann inlet was designed, its started and unstarted flowfields as long as off design performance were studied. It was then simulated in combination with the isolator, the results indicated that increasing the length of the isolator could help to raise the maxim...; 学位：工程硕士; 院系专业：物理与机电工程学院_工程硕士(电子与通信工程); 学号：33120121152656 |
| 语种 | zh_CN |
| 出处 | http://210.34.4.13:8080/lunwen/detail.asp?serial=50529 |
| 内容类型 | 学位论文 |
| 源URL | [http://dspace.xmu.edu.cn/handle/2288/134238]  |
| 专题 | 物理技术－学位论文 |
| 推荐引用方式 GB/T 7714 | 方骁远. 基于三维设计的超燃冲压发动机数值模拟与性能分析, Numerical Simulation and Performance Analysis of a Scramjet Based on Three Dimensional Design[D]. 2016, 2015. |
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