U.S.-Mexico Collaborative Research on Nucleate Boiling

该奖项将支持教授之间的合作工作 圣母大学的Mihir Sen教授 特米斯科太阳能实验室的爱德华多拉莫斯说， 墨西哥 研究人员打算研究核态沸腾 从单个和多个毛细血管部位。 可变热 通量将被用作控制参数来分析 从周期性沸腾到 混沌 为了评估相变的贡献 对观察到的现象，一个类似的研究没有阶段 改变，但随着惰性气体的受控注入， 也将进行。 在这种情况下， 惰性气体将是相关的分叉参数。 的 大部分相变工作将在美国完成，而 大多数惰性气体研究将在墨西哥进行。 这项工作的一部分将包括广泛的观察 和实验性质的解释。 另一个将 开发适当的分析模型， 可以定性地解释所观察到的过程 现象。 虽然圆柱形毛细结构 选择研究的是从一个基本点出发的最简单的几何学 这项研究的结果有望推动我们的 对沸腾的基本认识。 因此，拟议的 工作具有潜在的应用热设计 在沸腾条件下操作的设备， 制备用于增强传热的结构化表面。

This award will support collaborative work between Professor Mihir Sen of the University of Notre Dame and Professor Eduardo Ramos of the Solar Energy Laboratory in Temixco, Mexico. The researchers intend to study nucleate boiling from single-and multiple capillary sites. Variable heat flux will be used as a control parameter to analyze the sequence of bifurcations leading from periodic boiling up to chaos. In order to assess the contribution of phase change to the observed phenomena, a similar study without phase change, but with the controlled injection of an inert gas, will also be carried out. In this case the mass flow rate of the inert gas will be the relevant bifurcation parameter. The bulk of the phase change work will be done in the U.S., while most of the inert gas studies will be in Mexico. One part of the work will consist of extensive observation and interpretation of an experimental nature. Another will be the development of a suitable analytical model for the processes which can qualitatively explain the observed phenomena. Though the cylindrical capillary structure chosen for study is the simplest geometry from a basic point of view, results from this study are expected to advance our fundamental understanding of boiling. As such the proposed work has potential application to the design of thermal equipment operating under boiling conditions and to the preparation of structured surfaces for enhanced heat transfer.