期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 136, 期 -, 页码 288-297出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2019.02.101
关键词
Unsteady; Hybrid nanofluids; Stretching/shrinking sheet; Dual solutions; Stability analysis
资金
- Universiti Kebangsaan Malaysia [GUP-2018-153]
- Universiti Teknikal Malaysia Melaka
- Ministry of Education, Malaysia [PN-III-P4-ID-PCE-2016-0036]
- UEFISCDI of Romanian Ministry of Sciences
The unsteady flow and heat transfer past a stretching/shrinking sheet in a hybrid nanofluid is studied. The governing equations of the problem are transformed to the similarity equations by using similarity transformation technique. The problem is solved numerically using the boundary value problem solver (bvp4c) in Matlab software. The plots of the skin friction coefficient and the local Nusselt number as well as the velocity and temperature profiles for selected parameters are presented. It is found that dual solutions exist for a certain range of the unsteadiness parameter. A temporal stability analysis is performed to determine the stability of the dual solutions in a long run, and it is reveals that only one of them is stable while the other is unstable. (C) 2019 Elsevier Ltd. All rights reserved.
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