Research of heat transfer processes in hydrogels by holographic interferometry and gradient thermometry
Zakharov N.S. 1,2, Pokusaev B.G.1, Vyazmin A.V. 2, Nekrasov D.A.1,2, Sulyagina O.A. 1, Moshin A.A.2
1Moscow Polytechnic University, Moscow, Russia
2MIREA - Russian Technological University, Moscow, Russia
Email: NicolaZaharov@yandex.ru, av1958@list.ru, Schev_olga@mail.ru

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The study of natural convection in structured optically transparent materials using pure and combined agarose-gelatin gels was carried out by optical holography. The article presents data on visualization of the occurrence and development of convective flows in such gels with non-stationary conductive heating from below. The similarities and differences of the conditions of heat transfer and the occurrence of convection in structured materials and droplet liquids are analyzed. For the first time experimentally obtained data on the effect of two interpenetrating and interacting structured media on the transition from conductive to convective heat transfer. Keywords: natural convection in gels, optical holography, hydrogels, three-dimensional bioprinting.
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