Research Article Significance of MHD Radiative Non-Newtonian Nanofluid Flow towards a Porous Channel: A Framework of the Casson Fluid Model N. Thamaraikannan , 1 S. Karthikeyan, 1 and Dinesh Kumar Chaudhary 2 1 Department of Mathematics, Erode Arts and Science College, Erode 638 009, Tamilnadu, India 2 Department of Physics, Amrit Campus, Tribhuvan University, Kathmandu, Nepal Correspondence should be addressed to N. amaraikannan; kthamkar@gmail.com and Dinesh Kumar Chaudhary; din.2033@ gmail.com Received 1 April 2021; Accepted 18 May 2021; Published 7 June 2021 Academic Editor: Riaz Ahmad Copyright © 2021 N. amaraikannan et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. e effect of various parameters in the unsteady pulsating flow of radiative hydromagnetic Casson nanofluid through a porous channel is investigated. e governing equations were nondimensionalized by applying suitable transformations. e pertur- bation technique was employed to solve the resulting similarity equations. e velocity and temperature fields are illustrated for several pertinent flow parameters. e fluid velocity has been enhancing for higher values of the frequency parameter, Casson fluid parameter, nanoparticle volume fraction, and Darcy number. e reverse impact is observed for larger values of the Hartmann number. e result reveals that adding the nanoparticles has enhanced the heat transfer of the base fluid as the nanoparticles increase the heat conductivity. Furthermore, it is noticed that the temperature profile decreases rapidly for higher values of the cross Reynolds number and the radiation parameter. Finally, an excellent agreement between the current results and previous results is obtained by comparing with the available limiting results in the literature. 1. Introduction Nanofluid consists of the uniform composition of solid particles whose dimension is in the range of 1 to 100 nm. e heat transfer characteristics of nanofluid will be controlled by low thermal conductivity. Due to this constraint, the heat transfer ability of conventional heat transfer fluids such as water, lubricant oil, and ethylene glycol has been highly limited since they provided low thermal conductivity. Generally, metals exhibit higher thermal conductivity than typical heat transfer fluids. Mixing low-dimension metallic particles (nanoparticles) with fluids will help increase the thermal conductivity. is process is identified as an in- novative technique for enhancing the heat transfer coeffi- cient. Choi [1] attempted this first and succeeded. Nisar et al. [2] investigated the steady flow with heat diffusion of blood which transmits the micropolar nanoliquid with gold particles through a curved shrinking/stretched surface with the impact of radiation. ey suggested that nanoparticle- containing gold can treat cancer as these materials have a lofty atomic quantity that produces the temperature guide to the handling of malignant tumours. e heat transfer be- haviors in the presence of the magnetic field were investi- gated using the finite-element method by Sheikholeslami et al. [3]. Dogonchi et al. [4] examined the magnetohy- drodynamic (MHD) flow of nanofluid and heat transmission between two surfaces by taking into account the Joule heat effects. eir study has identified an increase in the con- centration, Nusselt number, and temperature profiles with an increase in the magnitude of the Schmidt number. Magnetohydrodynamics (MHD) is a branch of dynamics which deals with fluids during electrical conduction, such as electrolytes, plasmas, and liquid metals. e primary prin- ciple of MHD is to produce forces in the fluid when the Hindawi Journal of Mathematics Volume 2021, Article ID 9912239, 15 pages https://doi.org/10.1155/2021/9912239