Lower Stagnation Point Flow of Convectively Heated  Horizontal Circular Cylinder in Jeffrey Nanofluid with  Suction/Injection

Syazwani Mohd Zokri; Mohd Zuki Salleh; Nur Syamilah Arifin; Abdul Rahman Mohd Kasim

Authors

Syazwani Mohd Zokri Centre for Mathematical Sciences, College for Computing and Applied Sciences, Universiti Malaysia Pahang, 26300 Kuantan, Pahang, Malaysia
Mohd Zuki Salleh Centre for Mathematical Sciences, College for Computing and Applied Sciences, Universiti Malaysia Pahang, 26300 Kuantan, Pahang, Malaysia
Nur Syamilah Arifin Universiti Teknologi MARA, Cawangan Johor, Kampus Pasir Gudang, 81750 Masai, Johor, Malaysia
Abdul Rahman Mohd Kasim Centre for Mathematical Sciences, College for Computing and Applied Sciences, Universiti Malaysia Pahang, 26300 Kuantan, Pahang, Malaysia

Keywords:

Lower stagnation point, Jeffrey nanofluid, ; convective boundary conditions, suction/injection, mixed convection

Abstract

Lower stagnation point flow of Jeffrey nanofluid from a horizontal circular cylinder is addressed under the influences of suction/injection, mixed convection and convective boundary conditions. Copper (Cu) is taken as the nanoparticles while Carboxymethyl cellulose (CMC) water is taken as the base fluid. The transformed boundary layer equations through the non-dimensional variables and non-similarity transformation variables are subsequently tackled by means of the Runge-Kutta Fehlberg method (RKF 45). The impact of dimensionless parameters such as the suction/injection, nanoparticles volume fraction and Deborah number are graphically presented and discussed in detail. The outcomes reveal that the velocity and temperature profiles are both augmented with rising values of nanoparticles volume fraction. Velocity profile escalates as suction/injection parameter rises but declines as Deborah number upsurges. Temperature profile reduces when suction/injection parameter enlarges and augments when Deborah number increases.