Radiative heat transport and unsteady flow in an irregular channel with aggregation kinematics of nanofluid

Title

Radiative heat transport and unsteady flow in an irregular channel with aggregation kinematics of nanofluid

Creator

Jestine S.; Mahanthesh B.

Description

In this study, an unsteady free convective heat transfer and the laminar flowof incompressible nanoliquid in a wavy channel subjected to the nanoparticles aggregation effects were studied. For the investigation, ethylene glycol-based nanofluid with titania nanoparticles was used. Here, the role of the nanoparticle aggregation, thermal radiation, applied magnetic field, and internal heat absorption is examined. A semi-analytical solution of the complicated partial differential equation is obtained by the method of regular perturbation. The effect of several parameters on velocity and temperature profile has been studied. In addition, Nusselt number (Nu) and skin friction (Formula presented.) are also examined and analyzed with the help of graphs. It has been observed that the velocity profile enhances with aggregation effect than without aggregation effect. The aggregation effects are minimal for smaller volume fraction of nanoparticles. A reverse trend near the wavy wall is visible for all parameters. The magnitude of velocity decreased as an effect of the applied magnetic field, whilethe magnitude of velocity increased due to radiative heat flux. Furthermore, the heat sink mechanism reduces the magnitude of the nanofluid temperature. 2021 Wiley Periodicals LLC

Source

Heat Transfer, Vol-51, No. 1, pp. 223-238.

Date

2022-01-01

Publisher

John Wiley and Sons Inc

Subject

aggregation of nanoparticles; irregular channel; magnetic field; nanofluid; partial differential equations; thermal radiation

Coverage

Jestine S., Center for Mathematical Needs, Department of Mathematics, CHRIST (Deemed to be University), Bangalore, Karnataka, India; Mahanthesh B., Center for Mathematical Needs, Department of Mathematics, CHRIST (Deemed to be University), Bangalore, Karnataka, India

Rights

Restricted Access

Relation

ISSN: 26884534

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1002/htj.22304

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