Unsteady electromagnetic radiative nanofluid stagnation-point flow from a stretching sheet with chemically reactive nanoparticles, Stefan blowing effect and entropy generation

Rana, P; Shukla, N; Beg, OA; Kadir, A; Singh, B

Abstract

The present article investigates the combined influence of nonlinear radiation, Stefan blowing and chemical reactions on unsteady EMHD stagnation point flow of a nanofluid from a horizontal stretching sheet. Both electrical and magnetic body forces are considered. In addition, the effects of velocity slip, thermal slip and mass slip are considered at the boundaries. An analytical method named as homotopy analysis method is applied to solve the non-dimensional system of nonlinear partial differential equations which are obtained by applying similarity transformations on governing equations. The effects of emerging parameters including Stefan blowing parameter, electric parameter, magnetic parameter etc. on the important physical quantities are presented graphically. Additionally, an entropy generation analysis is provided in this article for thermal optimization. The flow is observed to be accelerated both with increasing magnetic field and electrical field. Entropy generation number is markedly enhanced with greater magnetic field, electrical field and Reynolds number, whereas it is reduced with increasing chemical reaction parameter.

Citation

Rana, P., Shukla, N., Beg, O., Kadir, A., & Singh, B. (2018). Unsteady electromagnetic radiative nanofluid stagnation-point flow from a stretching sheet with chemically reactive nanoparticles, Stefan blowing effect and entropy generation. Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanomaterials, Nanoengineering and Nanosystems, 232(2-3), 69-82. https://doi.org/10.1177/2397791418782030

• Journal Article Type: Article
• Acceptance Date: Feb 7, 2018
• Online Publication Date: Jun 22, 2018
• Publication Date: Jun 22, 2018
• Deposit Date: Feb 13, 2018
• Publicly Available Date: Feb 13, 2018
• Journal: Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanomaterials, Nanoengineering and Nanosystems
• Print ISSN: 2397-7914
• Electronic ISSN: 2397-7922
• Publisher: SAGE Publications
• Volume: 232
• Issue: 2-3
• Pages: 69-82
• DOI: https://doi.org/10.1177/2397791418782030
• Publisher URL: https://doi.org/10.1177/2397791418782030
• Related Public URLs: http://journals.sagepub.com/home/pin