关于安装在车辆上的自启动集成自启动过程的研究
Yu-Liang Zhang1, Kai-Yuan Zhang2, Yan-Juan Zhao3
1College of Mechanical Engineering, Quzhou University, Quzhou, 324000, China.
Heliyon
|September 17, 2024
概括
本研究使用计算流体动力学来研究自启动的特性. 自动启动过程涉及四个不同的阶段,能量损失集中在螺旋入口和外缘.
科学领域:
- 流体力学 流体力学 流体力学
- 机械工程 机械工程
- 技术 技术 技术
背景情况:
- 自动启动在移动应用中至关重要,但它们的启动特性需要详细了解.
- 之前的研究往往缺乏对动态原始化过程的详细模拟.
研究的目的:
- 在移动车设置中探索和分析自动启动的自动启动特性.
- 识别和描述自过程的不同阶段.
主要方法:
- 为自启动建立了一个3D循环管道系统模型.
- 利用用户定义函数 (UDF) 模拟螺旋加速和转速变化.
- 使用的流体体积 (VOF) 和可实现的k-ε流模型用于不稳定的不可压缩粘流的合数值模拟.
主要成果:
- 自动启动过程分为四个阶段:快速吸气,冲击排气,快速排气和残留气体排放.
- 每个阶段的持续时间在总原始化时间内显示出日益增长的趋势.
- 在冲击排气过程中观察到在快速吸气和在内气体分配过程中水位上升的特定模式.
- 在螺旋的入口和外部边缘区域确定了显著的能量损失.
结论:
- 四个阶段模型提供了一个全面的了解自启动的操作.
- 了解气液双相流动力学是优化自启动性能的关键.
- 能源损失分析突出了在螺旋几何学方面的潜在设计改进领域.
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