Flow and Heat Transfer of Oldroyd-B Fluids in a Rotating Curved Pipe Project supported by the National Natural Science Foundation of China(Grant No. 10272096)

• Published in: Journal of hydrodynamics. Series B Vol. 20; no. 1; pp. 39 - 46
• Main Authors: SHEN, Xin-rong, ZHANG, Ming-kan, MA, Jian-feng, ZHANG, Ben-zhao
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2008
• Subjects: convected heat transfer; flow structure; Oldroyd-B fluids; rotating curved pipe; rotating curved pipe; convected heat transfer; Oldroyd-B fluids; flow structure
• ISSN: 1001-6058
• DOI: 10.1016/S1001-6058(08)60025-6

The flow and convected heat transfer of the Oldroyd-B fluids in a rotating curved pipe with circular cross-section were investigated by employing a perturbation method. A perturbation solution up to the second order was obtained for a small curvature ratio, κ. The variations of axial velocity distribution and secondary flow structure with F, Re and We were discussed in detail in order to investigate the combined effects of the three parameters on flow structure. The combined effects of the Coriolis force, inertia force and elastic force on the temperature distribution were also analyzed, which are greater than the adding independent effects of the three forces. The variations of the flow rate and Nusselt number with the rotation, inertia and elasticity were examined as well. The results show the characteristics of the heat and mass transfer of the Oldroyd-B fluids in a rotating curved pipe.