dc.contributor.author Kimunguyi, J. K. dc.contributor.author Gatheri, F. K. dc.contributor.author Awuor, K. O. dc.date.accessioned 2021-09-30T09:30:00Z dc.date.available 2021-09-30T09:30:00Z dc.date.issued 2020 dc.identifier.citation KIMUNGUYI, J., GATHERI, F., & AWUOR, K. Modelling Turbulence Using the Staggered Grid and Simplec Method. en_US dc.identifier.issn 2456-2165 dc.identifier.uri https://www.ijisrt.com/assets/upload/files/IJISRT20MAY004.pdf dc.identifier.uri http://ir-library.ku.ac.ke/handle/123456789/22697 dc.description A research article published in International Journal of Innovative Science and Research Technology en_US dc.description.abstract In a natural convection, local density en_US differences and a resulting pressure gradient accelerate the fluid. In this paper a numerical study of a turbulent, natural convection problem is performed with an incompressible fluid in a rectangular enclosure. At the heated wall, the temperature distribution is a function of temperature gradients. The objective of this study is to conduct a numerical investigation of turbulent natural convection in a 3-D cavity using the staggered grid and the SIMPLEC method. The statisticalaveraging process of the mass, momentum and energy governing equations introduces unknown turbulent correlations into the mean flow equations which represent the turbulent transport of momentum, heat and mass, namely Reynolds stress () and heat flux (), which are modeled using k- SST model. The ReynoldsAveraged Navier-stokes (RANS), energy and k- SST turbulent equations are first non-dimensionalized and the resulting equations are discretized using a staggered and solved using SIMPLEC. From the results, both the experimental data and simulation using the staggered grid and SIMPLEC return a non-dimensional temperature of 0.5 at the core of the cavity and almost zero towards the cold and the natural turbulence flow is responsible for temperature distribution. Further, convective mass exchange is dominant in the centre of the enclosure. The investigated Rayleigh number of this study lies at Ra = 1.58. dc.language.iso en en_US dc.publisher International Journal of Innovative Science and Research Technology en_US dc.subject Turbulence en_US dc.subject Natural Convention en_US dc.subject Staggared Grid en_US dc.subject SIMPLEC Method. en_US dc.title Modelling Turbulence Using the Staggered Grid and Simplec Method en_US dc.type Article en_US
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