For citation:
Snigerev B. A., Tazyukov F. K. The Feature of Non-Isothermal Viscoelastic Flows Around Sphere at Obstruction Condition. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, 2011, vol. 11, iss. 1, pp. 99-104. DOI: 10.18500/1816-9791-2011-11-1-99-104
The Feature of Non-Isothermal Viscoelastic Flows Around Sphere at Obstruction Condition
The numerical study is performed for study of the viscoelastic flow characteristics and heat transfer around sphere. The flow of liquid is described by equations of conservation of mass, momentum and thermal energy with rheological constitutive equation of Phan-Thien Tanner(PTT). Thismodelrepresents generalizedMaxwell typemodel with two additional parameters developed from kinetic theory of polymers. The nonlinear behaviour of fluid velocity behind body (<>) is observed. The paper numerically shows the essential influence of relaxation time and heating of sphere for viscoelastic structure of the flow in wake. The heat transfer exchange in non-isothermal flow around sphere with slip and noslip condition on walls has been investigated.
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