Reconstruction of interference and Hilbert structures from numerical models of the isotherm field in convective flows induced in a vertical layer of water by unsteady boundary conditions

Reconstruction of interference and Hilbert structures from numerical models of the isotherm field in convective flows induced in a vertical layer of water by unsteady boundary conditions Full article

Journal

Научная визуализация (Scientific Visualization)
ISSN: 2079-3537

Output data

Year: 2019, Volume: 11, Number: 5, Pages: 119-125 Pages count : 7 DOI: 10.26583/sv.11.5.10

Tags

Convective currents; Hilbert-optics; Optical diagnostics; Shear interferometry

Authors

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

Affiliations

1	Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
2	Sobolev Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
3	Novosibirsk State Technical University, Novosibirsk, Russian Federation

The problem of reconstructing interference and Hilbert structures from a numerical model of the evolution of the thermal field of convective flows in a vertical water layer bounded by flat heat-exchanging surfaces under unsteady boundary conditions in the monotonic cooling mode and taking into account density inversion at a temperature of +4 degrees Celsius was solved. The simulation of the thermal fields of convective flows in the form of the dynamic structure of isotherms was carried out taking into account the nonlinear dependence of thermal conductivity and water density on temperature. The field of the phase function, its Hilbert image and the interference field, which are compared with the results of the interference and Hilbert visualization of the fields of phase optical density obtained in the experiment, were reconstructed from the isotherms field supplemented by calculating of the velocity field and of the temperature gradients field. The presented films illustrate the qualitative adequacy of the coevolution of numerical models and real processes.

Arbuzov V.A. , Arbuzov E.V. , Berdnikov V.S. , Dubnishchev Y.N. , Kislitsin S.A. , Zolotukhina O.S.
Reconstruction of interference and Hilbert structures from numerical models of the isotherm field in convective flows induced in a vertical layer of water by unsteady boundary conditions
Научная визуализация (Scientific Visualization). 2019. V.11. N5. P.119-125. DOI: 10.26583/sv.11.5.10 Scopus OpenAlex

Scopus:	2-s2.0-85077113369
OpenAlex:	W2994812361

DB	Citing
Scopus	1
OpenAlex	1