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侧孔万克尔旋转发动机的吸入相的参数建模和分析
Huaiyu Wang1, Changwei Ji2, Jinxin Yang2
1School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China.
Heliyon
|November 29, 2023
概括
本研究介绍了一种新的3D CFD建模技术,用于优化Wankel旋转发动机端口设计. 该方法有效地控制端口阶段和形状,提高体积效率并减少进气损失.
科学领域:
- 内部燃烧发动机 内部燃烧发动机
- 流体动力学 流体动力学
- 发动机设计 发动机设计
背景情况:
- 温克尔旋转发动机 (WRE) 需要精确的进气和排气阶段控制以获得最佳性能.
- 现有的设计方法在优化端口几何和时间方面可能缺乏灵活性.
研究的目的:
- 开发和验证一种新的参数建模技术,用于使用3D CFD设计WRE端口.
- 为了研究端口阶段参数和辅助弧度大小对发动机性能的影响.
主要方法:
- 利用三维计算流体动力学 (3D CFD) 进行端口参数建模.
- 定义了使用启动/完全打开/关闭时间的端口阶段,并通过旋翼侧翼转换/旋转控制它们.
- 采用四个辅助圆弧来平滑和变化端口形状.
主要成果:
- 这种新的方法证明了对端口阶段和形状的灵活和有效控制.
- 提前关闭港口的完全关闭时间减少了回流量,提高了体积效率 (VE),但成本增加了输入损失 (IL).
- 一个小的R1大小增加了VE,减少了IL,而最佳的R3大小改善了VE,减少了IL.
结论:
- 提出的参数建模技术为优化WRE端口设计提供了理论基础.
- 这些发现为制造和设计各种尺寸的侧孔式钢丝网提供了实际指导.
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