A. Kamal, M. H. and Rawi, N. A. and Ali, A. and Shafie, Sharidan (2020) Effects of gjitter and radiation on threedimensional double diffusion stagnation point nanofluid flow. Applied Mathematics and Mechanics (English Edition), 41 (11). pp. 17071722. ISSN 02534827

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Official URL: http://dx.doi.org/10.1007/s1048302026666
Abstract
The unsteady double diffusion of the boundary layer with the nanofluid flow near a threedimensional (3D) stagnation point body is studied under a microgravity environment. The effects of gjitter and thermal radiation exist under the microgravity environment, where there is a gravitational field with fluctuations. The flow problem is mathematically formulated into a system of equations derived from the physical laws and principles under the noslip boundary condition. With the semisimilar transformation technique, the dimensional system of equations is reduced into a dimensionless system of equations, where the dependent variables of the problem are lessened. A numerical solution for the flow problem derived from the system of dimensionless partial differential equations is obtained with the Keller box method, which is an implicit finite difference approach. The effects studied are analyzed in terms of the physical quantities of principle interest with the fluid behavior characteristics, the heat transfer properties, and the concentration distributions. The results show that the value of the curvature ratio parameter represents the geometrical shape of the boundary body, where the stagnation point is located. The increased modulation amplitude parameter produces a fluctuating behavior on all physical quantities studied, where the fluctuating range becomes smaller when the oscillation frequency increases. Moreover, the addition of Cu nanoparticles enhances the thermal conductivity of the heat flux, and the thermal radiation could increase the heat transfer properties.
Item Type:  Article 

Uncontrolled Keywords:  double diffusion, gjitter, nanofluid, stagnation point, thermal radiation 
Subjects:  Q Science > QA Mathematics 
Divisions:  Science 
ID Code:  91485 
Deposited By:  Yanti Mohd Shah 
Deposited On:  30 Jun 2021 12:17 
Last Modified:  30 Jun 2021 12:17 
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