本文選題：旋轉沖壓壓縮轉子　切入點：壓縮面　出處：《大連海事大學》2012年碩士論文　論文類型：學位論文

【摘要】：轉沖壓壓縮轉子是一種借助激波對氣體進行壓縮新型壓縮系統(tǒng),它集合了超聲速進氣道及離心壓氣機的設計方法,通過高速旋轉創(chuàng)造相對超聲速來流的條件,進而通過激波對氣體進行壓縮,它具有單級壓比高、重量輕、體積小等有點。激波系是旋轉沖壓壓縮轉子進行壓縮的根本,壓縮面結構是轉子激波系結構的決定因素,因此壓縮面設計是轉子設計中至關重要的環(huán)節(jié)之一。 文章正文主要分成三個部分： 第一部分介紹了所采用仿真軟件Fluent的特點和優(yōu)勢以及軟件模塊組成和功能意義。并對所采用的控制方程、差分格式、湍流模型、邊界條件相關公式進了行介紹。 第二部分對旋轉沖壓壓縮轉子的結構和原理進行了分析,對衡量轉子性能的指標及其意義進行了說明。在此基礎上,對能對轉子激波系結構有重要影響作用的轉子壓縮面進行了改型設計,以凸曲線壓縮面為參考,設計了三種能夠產生多條激波的壓縮面。 第三部分首先對采用凸曲線壓縮面的旋轉沖壓壓縮轉子的流場和性能進行了三維全面解析；然后考察了旋轉沖壓壓縮轉子重要的邊界條件背壓變化對轉子性能的影響；最后對采用不同形式壓縮面的旋轉沖壓壓縮轉子的仿真結果進行詳細對比分析,獲得了壓縮面形式影響旋轉沖壓壓縮轉子性能的一般規(guī)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.
【學位授予單位】：大連海事大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH45

【引證文獻】

相關期刊論文 前1條

1 亢維佳;劉占生;張廣輝;馬瑞賢;;背壓脈動作用下旋轉沖壓轉子進氣道流場激勵特性[J];推進技術;2013年07期

，

本文編號：1597035