TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Nihaal, Kandavkovi Mallikarjuna
A1  - Mahabaleshwar, Ulavathi Shettar
A1  - Swaminathan, Nedunchezhian
A1  - Laroze, David
A1  - Shevchuk, Igor V.
ED  - Silva Pinto, Sónia Isabel
T1  - A Numerical Investigation of Activation Energy Impact on MHD Water-Based Fe3O4 and CoFe2O4 Flow between the Rotating Cone and Expanding Disc
JF  - Mathematics
N2  - Hybrid nanofluids have caught the attention of scholars and investigators in the present technological period due to their improved thermophysical features and the desire to boost heat transfer rates compared to those of conventional fluids. The present paper is mainly concerned with heat transmission in cone-disk geometry in the presence of a magnetic field, activation energy, and non-uniform heat absorption/generation. In this work, the cone-disk (CD) apparatus is considered to have a rotating cone (RC) and a stretching disk, along with iron oxide and cobalt ferrite-based hybrid nanofluid. Appropriate similarity transformations are employed to change the physically modeled equations into ordinary differential equations (ODEs). Heat transfer rates at both surfaces are estimated by implementing a modified energy equation with non-uniform heat absorption/generation. The outcomes illustrated that the inclusion of such physical streamwise heat conduction variables in the energy equation has a significant impact on the well-known conclusions of heat transfer rates. To understand flow profile behavior, we have resorted to the RKF-45 method and the shooting method, which are illustrated using graphs. The findings provide conclusive evidence that wall stretching alters the flow, heat, and mass profile characteristics within the conical gap. The wall deformation caused by disk stretching was found to have a potential impact of modifying the centripetal/centrifugal flow characteristics of the disk, increasing the flow velocity and swirling angles. A rise in activation energy leads to an improved concentration field.
KW  - Cone-Disk Apparatus
KW  - Hybrid Nanofluid
KW  - MHD
KW  - Non-Uniform Heat Absorption/Generation
KW  - Activation Energy
KW  - 76W05
Y1  - 2024
UN  - https://nbn-resolving.org/urn:nbn:de:hbz:832-epub4-27489
SN  - 2227-7390
SS  - 2227-7390
U6  - https://doi.org/10.3390/math12162530
DO  - https://doi.org/10.3390/math12162530
VL  - 12
IS  - 16
SP  - 20
S1  - 20
PB  - MDPI
ER  -