# NSU Research Contributions

### Title : Numerical Simulation of Natural Convection of Dusty nanofluids within Curved Shaped Enclosure

**Authors : **S. K. Saha, S. K. Bala, N. C. Roy, M. M. Molla

**Abstract : **The current research expounds the numerical simulation of a two phase dusty nanofluid flow in a curve-shaped enclosure surrounded by three
straight walls and a curved wall. The flow is generated in the enclosure because of the buoyancy force due to the heated lower curved wall.
An apt variable transform that transfigures the curve-shaped domain into a rectangular domain is introduced in this study. The governing
equations for the nanofluid phase and the dusty phase in transformed coordinates are solved by incorporating a finite difference technique
with a successive over-relaxation method. The requisite results to analyze the flow and heat transfer are blazoned for physically significant
parameters, namely, the nanoparticlesâ€™ volume fraction, the Rayleigh number, the amplitude, the density ratio, and the dusty parameter. The
results assert that the flow strength can be decreased slightly by increasing the nanoparticlesâ€™ volume fraction and the amplitude but can be
increased notably by incrementing the Rayleigh number. Besides, heat transfer can be enhanced about 4.33% at the lower wall and about
5.13% at the upper wall by incrementing the nanoparticlesâ€™ volume fraction 4% for the Rayleigh number 105. Moreover, the increment in the
Rayleigh number and decrement in the density ratio and the dusty parameter can augment the heat transfer rate.

Journal : AIP Advances |
Volume : 10 |
Year : 2020 |
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Pages : 105304 |
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