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Non-isothermal flow of a polymeric fluid past a submerged circular cylinder |
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| Authors: | GH Wu BY Wu CC Wu |
| Affiliation: | a Department of Mechanical Engineering, National Cheng-Kung University, Tainan, 701, Taiwan, ROC b Department of Civil Engineering, National Cheng-Kung University, Tainan, 701, Taiwan, ROC c Department of Mechanical Engineering, California State University, Los Angeles, California, USA |
| Abstract: | In this paper, non-isothermal flow of a polymeric liquid past a circular cylinder in an infinite domain is investigated numerically. A non-Newtonian fluid, known as a differential-type White-Metzner model, is used in the flow simulation. The computer code developed is based on the elastic-viscous split-stress finite element method incorporating the streamline-upwind Petrov-Galerkin scheme. Numerical solutions for several cases are obtained. Global flow characteristics, such as drag coefficient and heat transfer coefficient, are derived. The effects of fluid elasticity, inertia, and shear-thinning on drag and heat transfer are also investigated. |
| Keywords: | Nusselt number Prandtl number Normalized drag Polymeric fluid Shear-thinning |
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