Modelling natural convection of fluid in cuvette

1st International Scientific School on Methods of Digital Image Processing in Optics and Photonics

物理学;计算机科学

Kucher, D.^1 ; Manukhin, B.^1 ; Andreeva, O.^1 ; Chivilikhin, S.^1

Saint Petersburg National Research University of Information Technologies, Mechanics and Optics, Kronverkskiy pr 49, St.Petersburg

197101, Russia^1

关键词: Boussinesq approximations;    Digital holographic interferometry;    Hot regions;    Jet formation;    Physical process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/536/1/012006/pdf
DOI  :  10.1088/1742-6596/536/1/012006

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Convection is a process of transfer liquid from a hot region to a cool region. This phenomenon is involved in many physical processes. The main characteristic of convection is a temperature field. Modelling of convection allows to get the information about temperature field at any time of process. In this paper the results of modelling natural convection of fluid in cuvette are presented. All results are approved by experimental data. For modelling the process of natural convection Navier-Stokes equations under Boussinesq approximation were used. An experimental setup based on digital holographic interferometry was developedin order to make an experiment. The results for three stadiums of convection, such as: jet initiation, initial jet formation, jet development with formation of mushroom-shaped convective stream, are presented.