Holographic Interferometric Tomography for Limited Data Reconstruction

摘要

Holographic interferometric tomography can provide reconstruction of instantaneous three-dimensional gross flowfields. The technique, however, encounters ill-posed reconstruction problems in practical applications, that is, restricted scanning and incomplete projection. A reconstruction algorithm, termed the variable grid method, has been developed to improve the reconstruction under the ill-posed conditions. To test the performance of the developed technique, a three-dimensional gravity-driven flow around two interacting isothermal cubes is investigated experimentally.