Enhancement of turbulent airflow and heat transfer through a rectangular microchannel with different types of baffles

• Autorzy: Saha Sandip , Raut Santanu , Das Apurba Narayan

Identyfikatory

DOI

10.17512/jamcm.2021.3.04

• Języki publikacji: EN

Abstrakty

EN

The objective of this work is to discuss the turbulent air hydro-thermal phenomena over a rectangular microchannel with different types of baffle (rectangular, triangular, and trapezoidal) mounted on both the walls of the microchannel. The finite volume method with the second order upwind scheme has been utilized to discretize the governing equations and to study the turbulent airflow characteristics; the SST k-ꞷ turbulence model has been adopted. For nine different cases, the different characteristics of fluid flow phenomena and thermal behaviour with the variations in the Reynolds number ranging from [5,000-25,000] and for three different values of inter baffle spacing have been studied in this manuscript. Due to the presence of baffle, it is revealed that the vortex arises on the upper wall and the thermal phenomena enhances with the decrease in inter baffle spacing.

Słowa kluczowe

EN

turbulent air flow; heat transfer; local Nusselt number; friction coefficient

PL

turbulentny przepływ powietrza; wymiana ciepła; liczba Nusselta; współczynnik tarcia

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Journal of Applied Mathematics and Computational Mechanics
• Rocznik: 2021
• Tom: Vol. 20, nr 3
• Strony: 41--52
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Saha Sandip

• Department of Mathematics, National Institute of Technology Silchar, Silchar-788010, Assam, India

autor

Raut Santanu

• Department of Mathematics, Mathabhanga College, Cooch Behar-736146, West Bengal, India

autor

Das Apurba Narayan

• Department of Mathematics, Alipurduar University, Alipurduar-736121, West Bengal, India

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).