ISSN 2079-3537      

 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
Scientific Visualization
Issue Year: 2017
Quarter: 1
Volume: 9
Number: 1
Pages: 112 - 123
Article Name: VISUALIZATION OF PHASE STRUCTURE OF THE THERMOGRAVITATIONAL JET WITH THE RECONSTRUCTION OF TEMPERATURE FLUID
Authors: V.A. Arbuzov (Russian Federation), E.V. Arbuzov (Russian Federation), Yu.N. Dubnishchev (Russian Federation), V.S. Berdnikov (Russian Federation), O.S. Melekhina (Russian Federation)
Address: V.A. Arbuzov
Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Russian Federation
Novosibirsk State Technical University, Russian Federation

E.V. Arbuzov
Novosibirsk State Technical University, Russian Federation
Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, Russian Federation

Yu.N. Dubnishchev
dubnistchev@itp.nsc.ru
Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Russian Federation
Novosibirsk State Technical University, Russian Federation

V.S. Berdnikov
Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Russian Federation
Novosibirsk State Technical University, Russian Federation

O.S. Melekhina
Novosibirsk State Technical University, Russian Federation
Abstract: The structure and evolution of thermogravitational buoyant jets in a high-viscosity liquid above a linear source of heat suddenly switched on are studied by methods of the Hilbert optics and shear interferometry. Based on the interferogram structure, reconstruction of the temperature field in the jet is performed with using approximation by Bernstein polinomials and Bezier curves. Recovery the phase function and the temperature of the plume was carried out on the interferogram using spline interpolation. Reliability of the results was tested by simulating shear interferogram of the reconstructed field and comparing it with the experimentally obtained fringe pattern. Such jets can be considered as a model of an upward flow in the spreading zone in geodynamic problems associated with the behavior of the Earths mantle at large depths.
Language: Russian


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