Development of Particle Tracking Flow Visualization for Opaque Metallic Melts

abstractcts - 9988603 j。建议扩建一个专门用于液态金属流体力学和凝固研究的实验设施：其现有的密度（即相）场可视化能力将被一种新的颗粒跟踪测速技术所补充：通过这种方式，两相对流过程（表征从液态熔体到固体合金铸件的转变）将在许多情况下被定量测量。然后，这个新的实验设备将用于理论家的验证，他们已经积累了大量的数值模拟，但到目前为止还没有这种现实检查的可用性。PI正在考虑他自己的一组比较：单元素熔体（镓）有和没有凝固，镓铟和铝合金有凝固。更广泛地说，PI设想了一个多大学的活动，以满足美国和国外液态金属基础研究界的需求。PI对与新技术相关的具体挑战进行了广泛的评估，特别是在示踪颗粒的选择方面。

AbstractCTS-9988603J. N. Koster, University of ColoradoIt is proposed to expand an experimental facility dedicated to liquid metal fluid mechanics and solidification research: its existing density (i.e. phase) field visualization capability will be supplemented by a new particle tracking velocimetry technique: in this manner, the two-phase convective processes which characterize the transition from liquid melts to solid alloy casts, will be quantitatively measurable in a number of cases. This new experimental facility will then be available for validation to the theoreticians who have accumulated a large number of numerical simulations, but so far without the availability of such a reality check. The PI is contemplating his own set of comparisons: single element melts (Gallium) with and without solidification, Gallium-Indium and Aluminum alloys with solidification. More broadly, the PI envisions a multi-University activity which would answer the need of the liquid metal basic research community in the US and abroad. The PI gave an extensive evaluation of the specific challenges associated with the new technique, especially in regard to the choice of tracer particulates.