旋转冲压压缩转子激波系配置研究

发布时间：2018-03-11 06:47

本文选题：旋转冲压压缩转子　切入点：压缩面　出处：《大连海事大学》2012年硕士论文　论文类型：学位论文

【摘要】：转冲压压缩转子是一种借助激波对气体进行压缩新型压缩系统,它集合了超声速进气道及离心压气机的设计方法,通过高速旋转创造相对超声速来流的条件,进而通过激波对气体进行压缩,它具有单级压比高、重量轻、体积小等有点。激波系是旋转冲压压缩转子进行压缩的根本,压缩面结构是转子激波系结构的决定因素,因此压缩面设计是转子设计中至关重要的环节之一。文章正文主要分成三个部分：第一部分介绍了所采用仿真软件Fluent的特点和优势以及软件模块组成和功能意义。并对所采用的控制方程、差分格式、湍流模型、边界条件相关公式进了行介绍。第二部分对旋转冲压压缩转子的结构和原理进行了分析,对衡量转子性能的指标及其意义进行了说明。在此基础上,对能对转子激波系结构有重要影响作用的转子压缩面进行了改型设计,以凸曲线压缩面为参考,设计了三种能够产生多条激波的压缩面。第三部分首先对采用凸曲线压缩面的旋转冲压压缩转子的流场和性能进行了三维全面解析；然后考察了旋转冲压压缩转子重要的边界条件背压变化对转子性能的影响；最后对采用不同形式压缩面的旋转冲压压缩转子的仿真结果进行详细对比分析,获得了压缩面形式影响旋转冲压压缩转子性能的一般规律。
[Abstract]:Rotary press compression rotor is a new compression system for gas compression with shock wave. It integrates the design method of supersonic inlet and centrifugal compressor, and creates the condition of relative supersonic flow through high-speed rotation. Furthermore, the gas is compressed by shock wave, which has the advantages of high single-stage pressure ratio, light weight, small volume and so on. The shock wave system is the basis of compression of rotary compression rotor, and the structure of compression plane is the decisive factor of the structure of the rotor shock wave system. Therefore, the design of compression surface is one of the most important links in rotor design. The text of the article is divided into three parts:. In the first part, the characteristics and advantages of the simulation software Fluent are introduced, as well as the software module composition and functional significance. The equations of control, difference scheme, turbulence model and boundary conditions are introduced. In the second part, the structure and principle of rotary press compression rotor are analyzed, and the index and significance of measuring rotor performance are explained. The compression surface of rotor which has important influence on the structure of rotor shock wave system is modified. Three compression surfaces which can produce multiple shock waves are designed with convex curve compression surface as the reference. In the third part, the flow field and performance of rotary press compression rotor with convex curve compression surface are analyzed, and then the influence of the change of back pressure on rotor performance is investigated. Finally, the simulation results of rotary press compression rotor with different compression surfaces are compared and analyzed in detail, and the general rules of compression surface affecting the performance of rotary stamping compression rotor are obtained.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH45

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