Research Initiation Award: Holographic Interferometry Tomography for the Study of Three-Dimensional Natural Convective Phenomena

本建议的目标是：1)开发了一种全息干涉层析成像技术，以获得复杂三维场中的高分辨率折射率数据；2)应用该技术量化三维自然对流温度场。3)通过与独立温度测量和直接数值模拟箱体内三维流动的结果进行对比，对实验结果进行评价。这项研究将导致一个独特的实验系统的发展和验证，该实验系统能够在类似于当前计算中解决的长度尺度上获得三维数据。这些数据对于评估、验证和改进复杂流动的三维模拟至关重要。所提出的实验技术的成功应用也是开发高分辨率三维，时间相关测量能力的第一步。

The objectives of this proposal are: 1) to develop a holographic interferometry tomography technique to obtain high-resolution refractive index data in complex three- dimensional fields, 2) apply the technique to quantify three- dimensional natural convective temperature fields in a differentially-heated cubical enclosure, and 3) evaluate the experimental results through comparison with independent temperature measurements and results of a direct numerical simulation of the three-dimensional flow in the enclosure. This research will result in the development and verification of a unique experimental system capable of obtaining three- dimensional data on length scales similar to those resolved in current computations. This data is essential to evaluate, verify, and improve three-dimensional simulations of complex flows. Successful application of the proposed experimental techniques is also the first step in the development of a high-resolution three-dimensional, time-dependent measurement capability.