ISSN 2079-3537      

 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                             





Scientific Visualization, 2018, volume 10, number 4, pages 134 - 144, DOI: 10.26583/sv.10.4.10

Optical diagnostics of convective structures induced by non-stationary boundary conditions in a vertical water layer

Authors: Yu.N. Dubnishchev1,A,C, V.A. Arbuzov2,A,C,E.V. Arbuzov3,B,C, V.S. Berdnikov4,A,C, S.A. Kislytsin5,A,C, O.S. Melekhina6,C

A Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

B Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

C Novosibirsk State Technical University, Novosibirsk, Russia

1 ORCID: 0000-0001-7874-039X, dubnistchev@itp.nsc.ru

2 ORCID: 0000-0003-2404-326X

3 ORCID: 0000-0001-9488-8650

4 ORCID: 0000-0002-7819-1340

5 ORCID: 0000-0002-4260-7025

6 ORCID: 0000-0003-3486-4459

 

Abstract

Using the methods of Hilbert optics and shear interferometry, the evolution of convective structures in a vertical layer of water, limited by flat heat exchange surfaces under non-stationary boundary conditions, is visualized using Hilbert optics and shear interferometry. The temperature field was restored. A numerical simulation of the isotherms field in the monotonic cooling mode of the vertical wall is performed. The inverse problem of reconstruction of interferograms and Hilbertograms from a numerical model of a temperature field in the convective flow was solved.

 

Keywords: optical diagnostics, Hilbert-optics, shear interferometry, convective currents,phase transition.