Convection Inside Nanofluid Cavity with Mixed Partially Boundary Conditions

Raoudha Chaabane, Annunziata D’Orazio, Abdelmajid Jemni, Arash Karimipour and Ramin Ranjbarzadeh
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Raoudha Chaabane: Laboratory of Thermal and Energetic Systems Studies (LESTE), National School of Engineering of Monastir, University of Monastir, Monastir 5000, Tunisia
Annunziata D’Orazio: Dipartimento di Ingegneria Astronautica, Elettrica ed Energetica, Facoltà di Ingegneria, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
Abdelmajid Jemni: Laboratory of Thermal and Energetic Systems Studies (LESTE), National School of Engineering of Monastir, University of Monastir, Monastir 5000, Tunisia
Arash Karimipour: Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
Ramin Ranjbarzadeh: Department of Civil, Constructional and Environmental Engineering, Sapienza University of Rome, Via Eudossiana 18, 00184 Roma, Italy

Energies, 2021, vol. 14, issue 20, 1-20

Abstract: In recent decades, research utilizing numerical schemes dealing with fluid and nanoparticle interaction has been relatively intensive. It is known that CuO nanofluid with a volume fraction of 0.1 and a special thermal boundary condition with heat supplied to part of the wall increases the average Nusselt number for different aspect ratios ranges and for high Rayleigh numbers. Due to its simplicity, stability, accuracy, efficiency, and ease of parallelization, we use the thermal single relaxation time Bhatnagar-Gross-Krook (SRT BGK) mesoscopic approach D 2 Q 9 scheme lattice Boltzmann method in order to solve the coupled Navier–Stokes equations. Convection of CuO nanofluid in a square enclosure with a moderate Rayleigh number of 10 5 and with new boundary conditions is highlighted. After a successful validation with a simple partial Dirichlet boundary condition, this paper extends the study to deal with linear and sinusoidal thermal boundary conditions applied to part of the wall.

Keywords: nanofluid; heat transfer; mixed boundary condition; lattice Boltzmann method (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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