Numerical investigation on the effects of obstruction and side ratio on non-Newtonian fluid flow behavior around a rectangular barrier

• Autorzy: Noferesti Sara , Ghassemi Hassan , Nowruzi Hashem

Identyfikatory

DOI

10.17512/jamcm.2019.1.05

• Języki publikacji: EN

Abstrakty

EN

In this paper, the characteristics of the flow and forced heat transfer of power law non-Newtonian fluids that flow around a quadrilateral and rectangular cylinder that are located in a 2D channel are investigated by use of the finite volume method (FVM) in a steady state flow regime. To this accomplishment, in the constant temperature, the effects of a different obstruction ratio, aspect ratio and Reynolds number are investigated. The Reynolds number in the range 5 ≤ Re ≤ 40, the power index in the range 0.5 ≤ n ≤ 1.4, the aspect ratio in the range 0.5 ≤ a ≤ 2, and the obstruction ratio in the range 0.125 ≤ b ≤ 0.5 were selected. By surveying the drag coefficient profiles, it’s concluded that as the obstruction ratio increases, the drag coefficient is increased, while an increase in the Reynolds number causes the lower drag coefficient. In addition, the drag coefficient is strongly increased by aspect ratio enhancements.

Słowa kluczowe

EN

non-Newtonian fluids; heat transfer; finite volume method; laminar flow

PL

płyn nieniutonowski; przenikanie ciepła; wymiana ciepła; metoda objętości skończonej; przepływ laminarny

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Journal of Applied Mathematics and Computational Mechanics
• Rocznik: 2019
• Tom: Vol. 18, nr 1
• Strony: 53--67
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Noferesti Sara

• Mechanical Engineering Department, Chabahar Maritime and Marine University, Chabahar, Iran

autor

Ghassemi Hassan

• Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran

autor

Nowruzi Hashem

• Mechanical Engineering Department, Chabahar Maritime and Marine University, Chabahar, Iran

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).