Validation of Turbulent Natural Modelling of Fluid in a 3-D Enclosure using SIMPLE Method and K-Ɛ Model
AbstractThe purpose of the study is to carry out a numerical investigation on turbulent natural convection fluid flow in a rectangular enclosure. A flow motion of the Newtonian fluid in the cavity was considered. To facilitate the analysis of the flow and thermal transfer rates, a set of non-dimensional equations governing the fluid flow was used. The time-averaging process of the mass, momentum and energy governing equations introduced nonlinear terms into the equations of mean flow namely Reynolds stress and heat flux , which were modelled using the k-ɛ model. The RANS equations, energy and k-ɛ turbulent equations were first non-dimensionalized and the resulting equations discretized using Finite Difference Method. From the results, density differences due to differences in temperature cause a very strong flow near the hot surface towards the roof of the enclosure. The numerical data was validated using the benchmark experimental data provided by Ratnakar Kulkarni (1998).
Terms and conditions of Creative Commons Attribution 4.0 International License apply to all published manuscripts. This Journal is licensed under a Creative Commons Attribution 4.0 International License. This licence allows authors to use all articles, data sets, graphics and appendices in data mining applications, search engines, web sites, blogs and other platforms by providing appropriate reference. The journal allows the author(s) to hold the copyright without restrictions and will retain publishing rights without restrictions.
A competing interest exists when professional judgment concerning the validity of research is influenced by a secondary interest, such as financial gain. We require that our authors reveal all possible conflicts of interest in their submitted manuscripts.
The Editor reserves the right to shorten and adjust texts. Significant changes in the text will be agreed with the Authors.