Experimental and Analytical Investigations of Flows in Porous Media

9307197 Behringer将对多孔介质中的自然对流进行大量的实验研究，并辅之以数值模拟。本研究的主旨是进一步探索和开发一种新的非侵入性诊断技术，称为改进的阴影技术(MST)。特殊布置的多孔材料可以在没有折射衰减的情况下接收光信号。然后，这项技术可以可视化对流模式。这种介质中的意外流动模式还有待进一步研究，并将探索该技术在二元混合物中的应用。除了进一步开发这一新工具以更多和更好地了解多孔介质流动之外，该研究还与大尺度流型对材料微观结构敏感这一重要现象有关。适用于各种环境和工程系统。***

9307197 Behringer A largely experimental investigation is to be carried out of natural convection in porous media, complemented by numerical simulations. The main thrust of the research is to further explore and exploit a novel non-invasive diagnostic technique called the Modified Shadowgraph Technique (MST). Specially arranged porous materials can be made to admit optical signals without refractive attenuation. This technique can then visualize convective patterns. Unexpected flow patterns in such media are to be further investigated, and the utility of the technique for binary mixtures will be explored. Beyond further developing this new tool for generating more and better insight into porous media flow, the investigation is also relevant to the important phenomenon of large scale flow pattern sensitivity to material microstructure. Application is to variety of environmental and engineering systems. ***