期刊
JOURNAL OF NANOFLUIDS
卷 7, 期 4, 页码 783-790出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jon.2018.1488
关键词
Entropy Generation; Nanofluids; Heat Transfer; Slendering Stretching; Frictional Heating
Entropy generation analysis of flow of nanofluids over a slendering stretching sheet is performed in this article. The fluids are water based nanofluids containing the nanoparticles of copper (Cu) and silver (Ag). The nonlinear partial differential equations governing the flow are transformed into nonlinear ordinary differential equations utilizing similarity transformations. Equations are then solved by shooting technique along with Runge-Kutta method. The accuracy of the method has been checked by comparing obtained results by Matlab's in-built boundary value problem solver bvp4c. Outstanding agreement is seen between them. The graphical and tabulated results are presented to show the interesting features of the problem with the relevant discussion. The novelty of the present study is in the heat transfer analysis in the presence of viscous dissipation and investigation of entropy generation in boundary layer flow of nanofluids over a stretching sheet of variable thickness. The analysis reveals that the entropy generated in copper-water nanofluid is less in comparison to silver-water nanofluid. Further, the decreasing behavior of entropy generation is observed with reducing thickness of the stretching sheet.
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