Viscous extensional flow and drop breakoff

粘性拉伸流和液滴破碎

• 批准号: DP0450047
• 负责人: Prof Yvonne Stokes
• 金额: $ 14.96万
• 依托单位: The University of Adelaide
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0450047
• 关键词: Viscous; extensional; flow; drop; breakoff

Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the geometry of the original containing vessel, together with balances between forces such as inertia, gravity, viscosity, viscoelasticity, and surface tension, through a theoretical, computational and experimental study of the fluid mechanics.

从勺子里落下的蜂蜜是粘性流体自由拉伸流动的常见例子，最终可能会分解成液滴。 这种流动在现代技术中非常重要，包括喷墨打印、焊接、钎焊和熔融金属加工、聚合物和玻璃纤维纺丝以及流变测量。 我们寻求通过理论、流体力学的计算和实验研究。