Marangoni convective nanofluid flow over an electromagnetic actuator in the presence of first‐order chemical reaction. Issue 1 (30th October 2019)

• Record Type: Journal Article
• Authors: Rasool, Ghulam; Shafiq, Anum; Tlili, Iskander
• Is Part Of: Heat transfer - Asian research. Volume 49:Issue 1(2020)
• Page Start: 274
• Page End: 288
• Publication Date: 2019-10-30
• Subjects: Chemical reaction -- Marangoni convection -- nanofluid -- nanoparticles -- Riga plate; Heat -- Transmission -- Periodicals; Electronic journals; 621.4022
• DOI: 10.1002/htj.21612
• Languages: English
• ISSNs: 1099-2871

Abstract

Abstract: The present study aims to investigate Marangoni‐forced convective nanofluid flow over an electromagnetic actuator (Riga plate). A first‐order homogeneous chemical reaction is considered. The thermocapillary and solutocapillary Marangoni effect developed by the surface tension is considered as a driving force for the nanofluid. In addition, Grinberg‐term is accounted to involve the impact of Lorentz force impinged by the actuator in the model. A set of nonlinear ordinary differential equations is obtained via suitable transformations for a nonsimilar analysis. Series solutions are achieved through homotopy to discuss the behavior of the velocity field, thermal distribution, and concentration of the nanoparticles graphically. The variation in Nusselt and Sherwood numbers is discussed. The outcomes declared that the flow parallel to the surface of the plate is assisted by the Lorentz forces generated by electromagnetic bars of the actuator resulting in an enhancement in the fluid motion. Furthermore, the stronger Marangoni effect resulted in the declining trend of the temperature profile. The concentration of nanoparticles near the surface reduced intensive chemical reaction inside the nanofluid.