期刊
THERMAL SCIENCE
卷 20, 期 2, 页码 437-447出版社
VINCA INST NUCLEAR SCI
DOI: 10.2298/TSCI140719049S
关键词
nanofluid; dual solution; thermal radiation
Heat transfer characteristics of a 2-D steady hydrodynamic flow of water-based copper nanofluid over a moving wedge, taking into account the effects of thermal radiation, have been investigated numerically. The Rosseland approximation is used to describe the radiative heat flux in the energy equation. The governing fundamental equations are first transformed into a system of ordinary differential equations and solved numerically by using the fourth-order Runge-Kutta method with shooting technique. A comparison with previously published work has been carried out and the results are found to be in good agreement. The existence of unique and dual solutions for self-similar equations of the flow and heat transfer are analyzed numerically. The results indicate that there is strong dependence of the thermal gradient at the surface of the wedge on both velocity ratio parameter and thermal radiation.
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