设计用于不可压缩和异热流应用的短风瑞流量计
Keith Wells1, Ahmad Sharifian1
1School of Engineering, University of Southern Queensland, Toowoomba, QLD, 4350. Australia.
Heliyon
|April 18, 2024
概括
研究人员通过优化圆角来开发更短的Venturi流量计. 这些新设计保持了高性能标准,同时将长度减少了24.9%,提供了更有效的流量测量解决方案.
科学领域:
- 流体力学 流体力学 流体力学
- 机械工程 机械工程
- 流量测量技术 流量测量技术
背景情况:
- 文图里流量计对于测量管道系统中各种流体的流速至关重要.
- 传统的Venturi设计通常很长,造成应用限制,并且需要大量的材料和能源来制造.
- 较短的Venturi设计是可取的,因为减少了材料使用,能源消耗和更好的应用性.
研究的目的:
- 开发更短的Venturi计,满足流量测量的既定性能标准.
- 研究角对较短的Venturi设计性能的影响.
- 评估Venturi长度,圆角和关键性能指标 (如压力损失和精度) 之间的权衡.
主要方法:
- 设计和评估了两个轴对称的venturi计,其喉直径与入口直径的比 (β-比) 为0.7.7.
- 专注于单相,不可压缩和同热流条件.
- 研究了圆角对Venturi性能在Reynolds数 (5,000至10,000,000) 范围内的影响,与ISO-5167标准的Venturi进行比较.
主要成果:
- 一个具有40度收圆角和10度分离圆角的Venturi设计比经典的ISO-5167 Venturi短24.9%.
- 这种优化较短的Venturi表现出与ISO-5167标准的Venturi可比的性能,雷诺兹数在100,000到10,000,000之间.
- 虽然ISO-5167 Venturi在关键标准上普遍优于测试设计,但开发的较短的Venturi在可接受的性能下大幅缩短了长度.
结论:
- 优化角可以导致Venturi流量计显著缩短,而不会影响基本的性能指标.
- 开发的40°/10°圆角Venturi为特定流量范围的传统设计提供了一个可行的,更紧的替代方案.
- 这项研究有助于开发更高效,更易于应用的流量测量设备.
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