Thermal analysis of multi-finned plate employing lattice Boltzmann method based on Taylor-series/least-squares. (January 2023)

• Record Type: Journal Article
• Authors: Malekshah, Emad Hasani; Abed, Azher M.; Aybar, Hikmet Ş.
• Is Part Of: Engineering analysis with boundary elements. Volume 146(2023)
• Page Start: 407
• Page End: 417
• Publication Date: 2023-01
• Subjects: Hydrothermal analysis -- Natural convection -- Nanofluid -- Second law analysis -- Multi-fin plate; Boundary element methods -- Periodicals; Engineering mathematics -- Periodicals; Équations intégrales de frontière, Méthodes des -- Périodiques; Mathématiques de l'ingénieur -- Périodiques; Boundary element methods; Engineering mathematics; Periodicals; 620.00151
• DOI: 10.1016/j.enganabound.2022.11.008
• Languages: English
• ISSNs: 0955-7997

Abstract

Abstract: A comprehensive experimental/numerical investigation is carried for the purpose of heat transfer and hydrodynamic analysis of natural convection within a cavity equipped with active rectangular fins. Numbers of hot and cold fins are fitted at the surface of square cavity which have remarkable effect on the hydrothermal performance of cavity. In this work, some parameters with significant impact on hydrothermal performance are selected to be studied such as value of Rayleigh number (Ra), value of nanoparticle volume concentration (φ V ) and arrangement of active fins (Ther.Arr A, B, C and D). To reach this purpose, numerical approach and empirical observations are coupled to provide an accurate data. In order to make the standard Lattice Boltzmann Method (LBM) compatible with the non-uniform grid distribution, the Taylor series expansion and least square-based lattice Boltzmann method (TLLBM) is used. Furthermore, firstly, the SiC-EG nanofluid samples are prepared using modern experimental, and then its rheological and thermal properties are measured using modern devices. It is concluded that using of nanofluid and the thermal arrangement of fins, have significant impact on the thermal performance of cavity.