Liquid Jet and Droplet Impaction on a Moving Substrate

液体射流和液滴对移动基底的冲击

• 批准号: RGPIN-2016-03750
• 负责人: Green, Sheldon
• 金额: $ 2.4万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638926
• 关键词: Liquid; Jet; Droplet; Impaction; Moving

In numerous industrial processes a liquid jet or liquid droplets impact on a moving solid surface. As the liquid impacts the surface a thin lamella is generated. For the case of liquid jet impaction, if the lamella adheres to the surface and all liquid remains on the surface, the impaction outcome is described as ‘deposition’. In contrast, if the liquid breaks into fine droplets, ‘splattering’ or ‘splash’ occurs. In most applications, for example surface coating, deposition is the desired outcome whereas splash and splattering are undesirable. Whether the jet deposits cleanly on the surface is a function of the liquid and surface properties, and surprisingly, also a function of the surrounding air.

在许多工业过程中，液体射流或液滴撞击移动的固体表面。当液体撞击表面时，会产生薄薄的薄片。对于液体射流撞击的情况，如果薄片粘附在表面上并且所有液体保留在表面上，则撞击结果被描述为“沉积”。相反，如果液体破碎成细小的液滴，就会发生“飞溅”或“飞溅”。在大多数应用中，例如表面涂层，沉积是期望的结果，而飞溅和飞溅是不期望的。射流是否干净地沉积在表面上是液体和表面特性的函数，令人惊讶的是，它也是周围空气的函数。