Collaborative Research: Ice Melting Induced by Flows in an Adjacent Immiscible Liquid Layer

合作研究：相邻不混溶液体层中的流动引起的冰融化

• 批准号: 1938976
• 负责人: Hirotaka Sakaue
• 金额: $ 23.81万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-01-15 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1938976&HistoricalAwards=false
• 关键词: Collaborative; Research; Ice; Melting; Induced

The deterioration of ice by spill contamination is a complex process that is not well understood. This research project will study the effects of convective flow and melt layer film on the melting dynamics of an ice wall in contact with a heated oil. Such situations would be encountered during an oil spill event in the Arctic regions when the oil layer absorbs heat from the Sun or from flames if the oil is burning. The heat absorption will cause different melt patterns and carve out lateral cavities inside the ice wall. At a large scale, this process can cause a shift in the structure and geology of floating ice blocks and thereby impact the Arctic ecosystem in unanticipated ways. This research project will address this knowledge gap through a series of experiments that use imaging and tracking methods to analyze the ice melting process. The project researchers will also create project-based learning opportunities for juniors and seniors at the Worcester Polytechnic Institute and a new graduate-level course at the University of Notre Dame.The research project investigates the fundamental science underlying the interaction of an immiscible liquid with ice. Previous studies on the melting of sea ice have considered parameters such as salinity and natural convection in the water to understand the fluid dynamics and heat transfer aspects of melting. However, ice melting by an oil layer is significantly different because of the characteristics of oil that influence the heat transfer pathways substantially. For example, the immiscibility of oil layer with water and presence of the gas-phase brings about interfacial forces that change the fluid flow and heat transfer dynamics. The induced convective patterns in the liquid layer by addition of interfacial forces to the existing buoyancy flows will cause unique flow patterns that impact the ice melting. Therefore, the scientific understanding of fluid flow and heat transfer pathways in the oil layer is required to predict oil-ice interaction and melting rates. Identification of the controlling mechanisms governing the convective flows will be achieved through the novel use of luminescence imaging techniques combined with particle tracking velocimetry. These experimental approaches will give spatiotemporal information on fluid transport and temperature. The knowledge obtained from this study will be pivotal in developing numerical models that address melting phenomena.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

冰因溢出污染而变质是一个复杂的过程，人们对此还不太了解。该研究项目将研究对流和融化层膜对与热油接触的冰壁的融化动力学的影响。 在北极地区发生漏油事件时，当油层从太阳或石油燃烧时从火焰吸收热量时，会遇到这种情况。 热量的吸收将导致不同的融化模式，并在冰墙内雕刻出横向空腔。在大范围内，这一过程可能导致浮冰块的结构和地质发生变化，从而以意想不到的方式影响北极生态系统。 该研究项目将通过一系列使用成像和跟踪方法分析冰融化过程的实验来解决这一知识差距。 项目研究人员还将为伍斯特理工学院的大三和大四学生创造基于项目的学习机会，并在圣母大学开设一门新的研究生课程。该研究项目调查了不混溶液体与冰相互作用的基础科学。 以前对海冰融化的研究考虑了海水中的盐度和自然对流等参数，以了解融化的流体动力学和传热方面。 然而，由于油的特性显著影响热传递路径，因此油层的冰融化是显著不同的。例如，油层与水的不可渗透性和气相的存在带来了改变流体流动和传热动力学的界面力。通过将界面力添加到现有浮力流中而在液体层中诱导的对流模式将导致影响冰融化的独特流动模式。因此，需要对油层中的流体流动和传热途径有科学的了解，以预测油冰相互作用和融化速率。识别的控制机制，管理的对流将实现通过新的使用发光成像技术结合粒子跟踪测速。这些实验方法将提供有关流体输运和温度的时空信息。从这项研究中获得的知识将是发展解决融化现象的数值模型的关键。这个奖项反映了NSF的法定使命，并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

项目成果

Dynamics of ice melting by an immiscible liquid layer heated from above

从上方加热的不混溶液体层融化冰的动力学

• DOI: 10.1016/j.expthermflusci.2022.110641
• 发表时间: 2022
• 期刊: Experimental Thermal and Fluid Science
• 影响因子: 3.2
• 作者: Farmahini Farahani, Hamed;Hayashi, Tatsunori;Sakaue, Hirotaka;Rangwala, Ali S.
• 通讯作者: Rangwala, Ali S.

Dual-luminescence Imaging and Particle Imaging Velocimetry for Simultaneous Temperature and Velocity Field Measurements in Immiscible Liquid

双发光成像和粒子成像测速，用于同时测量不混溶液体中的温度和速度场

• 发表时间: 2021
• 期刊: Measurement
• 影响因子: 5.6
• 作者: Hayashi, Tatsunori;Farahani, Hamed F;Rangwala, Ali S;Sakaue, Hirotaka
• 通讯作者: Sakaue, Hirotaka

DUAL-LUMINESCENCE IMAGING AND PARTICLE TRACKING VELOCIMETRY FOR SIMULTANEOUS TEMPERATURE AND VELOCITY FIELD MEASUREMENTS IN HYDROCARBONS LIQUID

双发光成像和粒子跟踪速度测量，用于同时测量碳氢化合物液体中的温度和速度场

• 发表时间: 2021
• 期刊: the ASME 2021 Fluid Engineering Division Summer Meeting FEDSM2021
• 作者: Hayashi, Tatsunori;Farahani, Hamed F;Rangwala, Ali S;Sakaue, Hirotaka
• 通讯作者: Sakaue, Hirotaka

Investigation on Ice Melting by Simultaneous Thermometry and Velocimetry Method in Oil

油中冰融化的同时测温测速法研究

• 发表时间: 2022
• 期刊: 75th Annual Meeting of the Division of Fluid Dynamics
• 作者: Yamazaki, M.

Flow Field Study of a Top Heated Immiscible Liquid Layer Adjacent to Ice

邻近冰的顶部加热不混溶液体层的流场研究

• DOI: 10.18409/ispiv.v1i1.25
• 发表时间: 2021
• 期刊: 14th International Symposium on Particle Image Velocimetry
• 作者: Farahani, Hamed F;Hayashi, Tatsunori;Rangwala, Ali S
• 通讯作者: Rangwala, Ali S