Evaluation of the effect of rotational speed and rheological nature on heat transfer of complex fluid between two cylinders

• Autorzy: Benmansour Abdelhalim , Laidoudi Houssem

Identyfikatory

DOI

10.24425/ather.2024.150439

• Języki publikacji: EN

Abstrakty

EN

This paper presents numerical results for flow behavior between a cold inner cylinder and a hot outer cylinder. Both cylinders are placed horizontally. The space separating the two compartments is completely filled with a fluid of a complex rheological nature. In addition, the outer container is subjected to a constant and uniform rotational speed. The results of this work were obtained after solving the differential equations for momentum and energy. The parameters studied in this research are: the intensity of thermal buoyancy, the speed of rotation of the outer container and the rheological nature of the fluid. These elements are expressed mathematically by the following values: Richardson number (Ri = 0 and 1), Reynolds number (Re = 1 to 40), power-law number (n = 0.8, 1 and 1.4) and Prandtl number (Pr = 50). The results showed that the speed of rotation of the cylinder and the rheological nature of the fluids have an effective role in the process of heat transfer. For example, increasing the rotational speed of the enclosure and/or changing the nature of fluid from shearthickening into shear-thinning fluid improves the thermal transfer rate.

Słowa kluczowe

EN

mixed convection; rheological behavior; steady simulation; CFD; nusselt number

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2024
• Tom: Vol. 45, no 1
• Strony: 65--73
• Opis fizyczny: Bibliogr. 45 poz., rys.

Twórcy

autor

Benmansour Abdelhalim

• Laboratory of Sciences and Marine Engineering, Faculty of Mechanical Engineering, USTO-MB, BP 1505, El-Menaouer, Oran, 31000, Algeria

autor

Laidoudi Houssem

• Laboratory of Sciences and Marine Engineering, Faculty of Mechanical Engineering, USTO-MB, BP 1505, El-Menaouer, Oran, 31000, Algeria

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