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Viscoelastic hybrid nanofluid flow over a vertical plate with sinusoidal surface temperature variations
Nepal Chandra Roy1, Ayantika Ghosh1
1Department of Mathematics, University of Dhaka, Dhaka, 1000, Bangladesh.
Heliyon
|May 14, 2023
Summary
This study examines natural convection heat transfer of a hybrid nanofluid with a second-grade viscoelastic fluid. Key findings reveal how parameters like magnetic fields and nanoparticle concentration influence boundary layers and heat transfer rates.
Area of Science:
- Fluid Dynamics
- Heat Transfer
- Nanotechnology
Background:
- Investigates natural convection of a second-grade viscoelastic hybrid nanofluid.
- Considers the influence of magnetic fields and thermal radiation on flow patterns.
Purpose of the Study:
- To analyze non-similar boundary layer flow and heat transfer.
- To explore the effects of various physical parameters on fluid behavior.
Main Methods:
- Governing equations transformed into a non-dimensional form.
- Finite difference method employed for solving the equations.
Main Results:
- Momentum boundary layer decreases, thermal boundary layer increases with higher radiation, surface temperature, Eckert numbers, magnetic field, and nanoparticle concentration.
- Deborah numbers (De1) increase shear stress and heat transfer, while Deborah numbers (De2) show opposite effects.
- Increased nanoparticle volume fraction enhances heat transfer rate.
Conclusions:
- Surface temperature oscillations and nanoparticle concentration significantly impact shear stress and heat transfer.
- Magnetic field effects reduce shear stress, while Eckert numbers decrease heat transfer due to fluid spreading.
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