| Issue |
MATEC Web Conf.
Volume 369, 2022
40th Annual Conference - Meeting of the Departments of Fluid Mechanics and Thermomechanics in the connection with XXIII. International Scientific Conference - The Application of Experimental and Numerical Methods in Fluid Mechanics and Energy (40th. MDFMT & XXIII. AEaNMiFMaE-2022)
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| Article Number | 01001 | |
| Number of page(s) | 9 | |
| Section | Measurement and Calculation of State Variables in the Fluid Flow | |
| DOI | https://doi.org/10.1051/matecconf/202236901001 | |
| Published online | 04 November 2022 | |
Correlation Coefficients in Lee’s Model of Multiphase Flows
Department of Power Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovakia
* Corresponding author: natalia.holesova@fstroj.uniza.sk
Multiple technical and biological systems exhibit multiphase flow phenomena. The demands for accurate calculations of the physical phenomena that occur in engineering technologies have increased along with their rapid advancement. However, it is very hard to identify two- and multi-phase flow through experimental measurements, as a result, in addition to experimental measurements, numerical simulations are also performed, which can help improve our physical understanding of the complex phenomenon of phase transformations. The goal of numerical simulations of phase changes is to precisely simulate the real progress and experiment. These simulations operate on the basis of physical principles and correlation coefficients of phase changes. These correlation coefficients have a different range of values. The examination of the Lee model's correlation coefficients from the ANSYS Fluent environment, which is now the most popular for multiphase flow simulations, is the subject of the article that is being given. In this article is also described and tested the numerical simulation of interphase mass transport in a closed space.
Research background: The article is focused on the problematics of multiphase flows. In ANSYS Fluent, there are many types of models, which are used for the numerical simulations of this phenomena. In models are included correlation parameters, which are specific for every single situation and are within the given ranges. This paper is about the Lee model, which correlation coefficients are in the range from 10-3 to 102.
Purpose of the article: A detailed description of Lee's model with its testing on a heat pipe in the ANSYS Fluent program with determined correlation coefficients.
Methods: The use of CFD simulation of multiphase flow to determine correlation coefficients.
Findings & Value added: Testing the correlation coefficients of Lee's model and finding their appropriate values for the given situation.
Key words: Lee model / correlation coefficient / CFD simulation / multiphase flow
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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