Natural convection flow in semi-trapezoidal porous enclosure filled with alumina-water nanofluid using Tiwari and das’ nanofluid model

• Autorzy: Vedavathi Nallapati , Venkatadri Kothuru , Fazuruddin Syed , Raju G. Sankara Sekhar

Identyfikatory

DOI

10.24423/EngTrans.1285.20221004

• Języki publikacji: EN

Abstrakty

EN

Nowadays, optimal parameters are necessary for heat transfer enhancement in different practical applications. A numerical simulation of natural convection in a semi-trapezoidal enclosure embedded with porous medium is presented. Stream function and temperature using the Darcy–Boussinesq approximation and Tiwari and Das’ nanofluid model with new more realistic empirical correlations for the physical properties of the nanofluids are formulated. The developed partial differential equations are employed with the help of the stream function approach. The in-house developed computational MATLAB code is validated with the previously published work. The impact of a wide range of governing parameters on fluid flow patterns and temperature gradient variations is presented. The thermal Rayleigh number (Ra) can be a control key parameter for heat and convective flow. Thermal dispersion effects are also examined in this study. An increase in the Rayleigh number leads to an increase in heat transfer, where one can find a reduction of convective heat transfer with φ.

Słowa kluczowe

EN

natural convection; laminar flow; porous medium; nanofluid; semi-trapezoidal enclosure

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2022
• Tom: Vol. 70, iss. 4
• Strony: 303--318
• Opis fizyczny: Bibliogr. 38 poz., rys., tab., wykr.

Twórcy

autor

Vedavathi Nallapati

• Department of Mathematics Koneru Lakshmaiah Education Foundation Vaddeswaram, India

autor

Venkatadri Kothuru

• Department of Mathematics Indian Institute of Information Technology Sri City, Andhra Pradesh, India

autor

Fazuruddin Syed

• Department of Mathematics Sreenivasa Institute of Technology and Management Studies Chittoor, Andhra Pradesh, India
• Department of Mathematics JNTUA College of Engineering Pulivendula, Andhra Pradesh, India

autor

Raju G. Sankara Sekhar

• Department of Mathematics JNTUA College of Engineering Pulivendula, Andhra Pradesh, India

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).