Flow and heat transfer in a meandering channel

Fluid flows occur due to internal or external forces such as wind, gravity, pressure gradients, side-wall motion, MHD, and free convection. This study examines how meanders impact heat transfer by studying the behavior of viscous fluid flow with streamwise vortices in a sinusoidal wavy meandering ch...

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Bibliographic Details
Published in:Frontiers in materials 2023-07, Vol.10
Main Authors: Ibrahim, Syed, Khan Marwat, Dil Nawaz, Ullah, Naeem, Nisar, Kottakkaran Sooppy, Kamran
Format: Article
Language:English
Subjects:
flow separation
instability
meandering channel
nonuniform radius
stream wise vortices
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Summary:Fluid flows occur due to internal or external forces such as wind, gravity, pressure gradients, side-wall motion, MHD, and free convection. This study examines how meanders impact heat transfer by studying the behavior of viscous fluid flow with streamwise vortices in a sinusoidal wavy meandering channel of non-uniform radius. The study simplifies the motion and energy equations governing the fluid flow using novel transformations and a regular perturbation method. By plotting graphs for different parameter values, such as Pr, Re, and Ec, it reveals that decreasing the wavelength leads to flow separation near the channel surface. However, the stream moves forward with a sudden meander disturbance, causing the flow to become rectilinear and independent of vertex-generating centrifugal forces. The study identifies a stream function using standard and established relations. The fluid flow patterns and temperature distribution behavior are shown in various plots, highlighting the significant impact of meanders on fluid flow.
ISSN:2296-8016
2296-8016
DOI:10.3389/fmats.2023.1183175