Effect of aiding buoyancy on heat transfer from an isothermal square cylinder in power-law fluids

• Autorzy: Mishra Pragya , Mishra Lubhani , Tiwari Anurag Kumar

Identyfikatory

DOI

10.24425/cpe.2022.140830

• Konferencja: The International Chemical Engineering Conference 2021 (ICHEEC): 100 Glorious Years of Chemical Engineering and Technology, September 16–19, 2021
• Języki publikacji: EN

Abstrakty

EN

The aim of the present study was to explore the influence of aiding buoyancy on mixed convection heat transfer in power-law fluids from an isothermally heated unconfined square cylinder. Extensive numerical results on drag coefficient and surface averaged values of the Nusselt number are reported over a wide range of parameters i.e. Richardson number, 01 Ri 5, power-law index, 04 𝑛 18, Reynolds number, 01 Re 40, and Prandtl number, 1 Pr 100. Further, streamline profiles and isotherm contours are presented herein to provide an insight view of the detailed flow kinematics

Słowa kluczowe

EN

mixed convection; power-law fluids; square cylinder; aiding-buoyancy; Nusselt number

PL

konwekcja mieszana; płyny potęgowe; kwadratowy cylinder; wspomaganie pływalności; liczba Nusselta

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2022
• Tom: Vol. 43, nr 2
• Strony: 265–--270
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr.

Twórcy

autor

Mishra Pragya

• Chaitanya Bharathi Institute of Technology, Department of Chemical Engineering, Hyderabad, Telangana 500075, India

autor

Mishra Lubhani

• The University of Texas at Austin, Walker Department of Mechanical & Material Science Engineering, Texas Materials Institute, Austin, TX 78705, USA

autor

Tiwari Anurag Kumar

• National Institute of Technology Jalandhar, Department of Chemical Engineering, Jalandhar, Punjab 144011, India

Bibliografia

• 1. Bird R.B., Armstrong R.C., Hassager O., 1987. Dynamics of polymeric liquids. Volume 1: Fluid dynamics. 2nd edition, Wiley, New York.
• 2. Chhabra R.P., 2011. Fluid flow and heat transfer from circular and noncircular cylinders submerged in non-Newtonian liquids. Adv. Heat Transfer, 43, 289–417. DOI: 10.1016/B978-0-12-381529-3.00004-9.
• 3. Sharma A., Eswaran V., 2005. Effect of channel-confinement and aiding/opposing buoyancy on the two-dimensional laminar flow and heat transfer across a square cylinder. Int. J. Heat Mass Transfer, 48, 5310–5322. DOI: 10.1016/j.ijheatmasstransfer.2005.07.027.
• 4. Sharma N., Dhiman A., Kumar S., 2013. Non-Newtonian power-law fluid flow around a heated square bluff body in a vertical channel under aiding buoyancy. Numer. Heat Transfer, Part A, 64, 777–799. DOI: 10.1080/10407782.2013.798568.
• 5. Sharma N., Dhiman A., Kumar S., 2014. Power-law shear-thinning flow around a heated square bluff body under aiding buoyancy at low Reynolds numbers. Korean J. Chem. Eng., 31, 754–771. DOI: 10.1007/s11814-013-0254-x.
• 6. Sharma N., Dhiman A.K., Kumar S., 2012. Mixed convection flow and heat transfer across a square cylinder under the influence of aiding buoyancy at low Reynolds numbers. Int. J. Heat Mass Transfer, 55, 2601–2614. DOI: 10.1016/j.ijheatmasstransfer.2011.12.034.
• 7. Srinivas A.T., Bharti R.P., Chhabra R.P., 2009. Mixed convection heat transfer from a cylinder in power-law fluids: Effect of aiding buoyancy. Ind. Eng. Chem. Res., 48, 9735–9754. DOI: 10.1021/ie801892m.