# Nanofluid Stagnation-Point Flow Using Tiwari and Das Model Over a Stretching/Shrinking Sheet with Suction and Slip Effects

## Authors

• Ubaidullah Yashkun Sukkur IBA University, Airport Road, Sukkur, 65200, Sindh, Pakistan
• Khairy Zaimi Institute of Engineering Mathematics, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia
• Nor Ashikin Abu Bakar Institute of Engineering Mathematics, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia
• Mohammad Ferdows Research Group of Fluid Flow Modeling and Simulation, Department of Applied Mathematics, University of Dhaka, Dhaka-1000, Bangladesh

## Keywords:

stagnation point flow, heat transfer, nanofluid, suction, slip, dual solutions

## Abstract

In this paper, we considered the stagnation point flow and heat transfer of nanofluid over the stretching/shrinking surface by utilizing of Tiwari and Das nanofluid model. Additionally, the impact of suction and the first order slip likewise have been taken into the account. The system of governing partial differential equations (PDEs) is changed into the system of non-linear ordinary differential equations (ODEs) by means of similarity transformation. The resultant ODEs are solved by using BVP solver (bvp4c) in MATLAB software. The impact of some physical parameters, for example the suction parameter and the slip parameter on the skin friction coefficients and the local Nusselt number as well as the temperature and velocity profiles have been investigated, tabulated and graphically presented. These profiles and variations demonstrate that there exist dual solutions for a specific range of the stretching/shrinking parameter. Both suction and slip effects has enhance the local Nusselt number which represent heat transfer rate at the surface. It is also found that inclusion of both suction and slip effects expands the range of the dual solutions exist. The existence of the dual solutions only occurs in in the shrinking region. The flow separation in the boundary layer delay due to suction and slip effects imposed in the boundary condition.

2021-01-03

## How to Cite

Yashkun, U. ., Zaimi, K. ., Abu Bakar, N. A. ., & Ferdows, M. . (2021). Nanofluid Stagnation-Point Flow Using Tiwari and Das Model Over a Stretching/Shrinking Sheet with Suction and Slip Effects. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 70(1), 62–76. Retrieved from https://akademiabaru.com/submit/index.php/arfmts/article/view/2936

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