Insight of mixed convectional heat transport in molybdenum disulfide-water nanofluid flow on moving vertical permeable plate with homogeneous-heterogeneous reactions

Author:

Pandey Amit Kumar1,Begum Momtaz2,Rajput Sohita1ORCID,Bhattacharyya Krishnendu1ORCID,Dular Mitu1ORCID,Banerjee Astick3ORCID,Chamkha Ali J.4ORCID

Affiliation:

1. Department of Mathematics, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India

2. Department of Computer Science and Engineering, Prime University, Mirpur-1, Dhaka, Bangladesh

3. Department of Mathematics, Sidho-Kanho-Birsha University, Purulia 723104, West Bengal, India

4. Faculty of Engineering, Kuwait College of Science and Technology, Doha District, Kuwait

Abstract

This analysis is framed to take care of the high heat transfer demand from various application prospects and in this context nanofluid may be in consideration because nanofluids are well-known liquids with higher heat transfer capabilities. Here, a mixed convection flow of Molybdenum disulfide-water (MoS2-H2O) nanofluid on a moving vertical plate is examined when there are chemical reactions. Nanofluid problem is investigated using Tiwari and Das model, and numerically solved by “bvp4c” method. For the considered effects in the study, overshoots in temperature profile of nanofluid are observed. Momentum and thermal layer thicknesses become thinner with suction and thicker with blowing. Temperature overshoot is higher for blowing cases. Enhanced homogeneous–heterogeneous reactions lead to rise of the concentration boundary layer’s thickness. Also, magnitude of surface-drag force decays and cooling rate enhances with MoS2-H2O nanofluid mixed convection. For weaker suction and for blowing, cooling of nanofluid is faster with larger volume fraction of nanoparticles, but contrast results are obtained for greater suction. Importantly, compared to the homogeneous reaction, the heterogeneous reaction exhibits more impactful influences on flow and heat-mass transport characters.

Funder

Banaras Hindu University

Publisher

World Scientific Pub Co Pte Ltd

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