Advances in Heat Transfer Engineering

ISBN Print: 9986-49278-5

EXPERIMENTAL SIMULATION OF MIXED CONVECTION

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DOI: 10.1615/BHT4.350
pages 339-346

Elzbieta Fornalik-Wajs Department of Fundamental Research in Energy Engineering, Faculty of Energy and Fuels, AGH University of Science and Technology, 30 Mickiewicza Avenue, 30059 Krakow, Poland

Wolfgang Leiner Institut fur Thermo- und Fluiddynamik Ruhr-Universitat Bochum, Germany, FRG

Janusz S. Szmyd Department of Fundamental Research in Energy Engineering, Faculty of Energy and Fuels, AGH University of Science and Technology, 30 Mickiewicza Avenue, 30059 Krakow, Poland

Tomasz A. Kowalewski Polish Academy of Science, 21 Swietokrzyska str., 00-049 Warsaw, Poland

Sinopsis

Currently, the most important techniques for the growth of bulk crystals use growth from the melt by defined control of the liquid-solid phase transition (Czochralski method). Presented work is related to the experimental simulation of mixed convection in the process of single-crystal growth by Czochralski method. This paper presents the visualization of the temperature and velocity fields. The visualizations were done by dispersed encapsulated liquid crystals, which enable the velocity and temperature measurements. The experimental conditions depended on the non-dimensional parameters like Prandtl number, Reynolds number and Grashof number.

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