通过计算分析和可视化测试,评估三向球中的化现象
Hyo Lim Kang1, Hyung Joon Park1, Seung Ho Han2
1Department of Mechanical Engineering, Dong-A University, Busan, 49315, Korea.
Scientific reports
|September 19, 2024
概括
计算流体动力学 (CFD) 分析优化了三向塞,减少了 19.06% 的空洞化,并防止了机械损伤. 流动可视化实验证实了CFD的发现,确保了精确的流体控制.
科学领域:
- 流体动力学 流体动力学
- 机械工程 机械工程
- 声学 声学 在声学方面
背景情况:
- 三路门控制流体的方向,但由于复杂的内部几何结构,流量不规则.
- 不规则的流量会导致洞穴形成,造成机械损坏,妨碍精确的流量控制.
研究的目的:
- 使用CFD分析估计三通的底插头周围局部空洞化.
- 用蒸汽体积分数 (VVF) 得到的空洞化 (POC) 的百分比来量化空洞化.
- 优化塞设计,以减轻洞化及其有害影响.
主要方法:
- 使用计算流体动力学 (CFD) 分析来模拟流体流动和空洞化.
- 使用VVF (VVF>0.5) 分于洞穴危险区体积来计算洞穴的百分比 (POC).
- 进行了流动可视化实验,使用图像梯度方法量化POC.
主要成果:
- 最初的CFD分析显示POC为34.90%,这是一种易受机械损坏的水平.
- 下插头腰部和尾部区域的尺寸优化成功地将POC降低了19.06%.
- 实验结果与CFD分析非常相匹配,验证了模拟的准确性.
结论:
- 优化的三通式门设计显著减少了空洞化,提高了流体流量控制.
- 差价合约分析是一种可靠的工具,用于预测和减轻门系统中的空洞化.
- 这项研究展示了一种可行的方法,用于防止三通中化引起的机械损伤.
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