目 录
摘 要 .............................................................................................................................I
Abstract ..............................................................................................................................II
引 言 ............................................................................................................................1
1 绪论 ..............................................................................................................................2
1.1 涡流管研究的历史背景....................................................................................2
1.2 涡流管的研究进展............................................................................................3
1.2.1 涡流管理论的研究进展.........................................................................3
1.2.2 涡流管结构特性的研究.........................................................................7
1.2.3 涡流管数值计算的研究.......................................................................14
1.2.4 涡流管应用的研究...............................................................................16
1.3 本文研究内容简介..........................................................................................18
2 锥形双回路涡流管结构设计 ....................................................................................19
2.1 热端管的设计..................................................................................................20
2.2 喷嘴的设计......................................................................................................20
2.2.1 喷嘴最小矩形截面的长宽比...............................................................20
2.2.2 喷嘴进气方式.......................................................................................21
2.2.3 喷嘴流道...............................................................................................21
2.3 热端阀和附加回路的设计..............................................................................22
2.4 阻涡器结构设计..............................................................................................22
2.5 冷端孔板结构设计..........................................................................................23
3 锥形双回路涡流管内部流动分析 ............................................................................24
3.1 物理模型..........................................................................................................24
3.2 湍流模型..........................................................................................................25
3.3 数值计算基本简化假设..................................................................................25
3.4 控制方程..........................................................................................................25
3.5 数值求解方法..................................................................................................27
3.5.1 边界条件...............................................................................................27
3.5.2 求解策略...............................................................................................27
3.6 锥形双回路涡流管的内部流动分析结果......................................................28
3.6.1 流场总体分析.......................................................................................28
3.6.2 热端管锥角对分离性能的影响...........................................................30
