Visualization of phase structure of the thermogravitational jet with the reconstruction of temperature fluid

Visualization of phase structure of the thermogravitational jet with the reconstruction of temperature fluid Full article

Journal

Научная визуализация (Scientific Visualization)
ISSN: 2079-3537

Output data

Year: 2017, Volume: 9, Number: 1, Pages: 112-123 Pages count : 12

Tags

Buoyant jets; Hilbert is optics; Interferometry; Optical diagnostics of the flow; Physical modeling of geodynamic the Processes; Thermogravitational convection

Authors

Arbuzov V.A. ^1,2 , Arbuzov E.V. ^2,3 , Dubnishchev Yu.N. ^1,2 , Berdnikov V.S. ¹ , Melekhina O.S. ¹

Affiliations

1	Kutateladze Institute of Thermophysics Siberian Branch, Russian Academy of Sciences, Russian Federation
2	Novosibirsk State Technical University, Russian Federation
3	Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Koptyuga 4, Novosibirsk, 630090, Russian Federation

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 Earth's mantle at large depths.

Arbuzov V.A. , Arbuzov E.V. , Dubnishchev Y.N. , Berdnikov V.S. , Melekhina O.S.
Visualization of phase structure of the thermogravitational jet with the reconstruction of temperature fluid
Научная визуализация (Scientific Visualization). 2017. V.9. N1. P.112-123. Scopus

Scopus:

2-s2.0-85018746056

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