Active and passive controls of 3D nanofluid flow by a convectively heated nonlinear stretching surface

2019 ◽  
Vol 94 (8) ◽  
pp. 085704 ◽  
Author(s):  
Tasawar Hayat ◽  
Arsalan Aziz ◽  
Taseer Muhammad ◽  
Ahmed Alsaedi
2017 ◽  
Vol 7 ◽  
pp. 4071-4078 ◽  
Author(s):  
Tasawar Hayat ◽  
Arsalan Aziz ◽  
Taseer Muhammad ◽  
Ahmed Alsaedi

2018 ◽  
Vol 8 ◽  
pp. 1185-1193 ◽  
Author(s):  
Mohamed R. Eid ◽  
Kasseb L. Mahny ◽  
Taseer Muhammad ◽  
Mohsen Sheikholeslami

2019 ◽  
Vol 15 (5) ◽  
pp. 913-931 ◽  
Author(s):  
Jawad Raza ◽  
Mushayydha Farooq ◽  
Fateh Mebarek-Oudina ◽  
B. Mahanthesh

Purpose The purpose of this paper is to examine the interaction effects of a transverse magnetic field and slip effects of Casson fluid with suspended nanoparticles over a nonlinear stretching surface. Mathematical modeling for the law of conservation of mass, momentum, heat and concentration of nanoparticles is executed. Design/methodology/approach Governing nonlinear partial differential equations are reduced into nonlinear ordinary differential equations and then shooting method is employed for its solution. The slope of the linear regression line of the data points is calculated to measure the rate of increase/decrease in the reduced Nusselt number. Findings The effects of magnetic parameter (0=M=4), Casson parameter (0.1=β<8), nonlinear stretching parameter (0=n=3) and porosity parameter (0=P=6) on axial velocity are shown graphically. Numerical results were compared with another numerical approach and an excellent agreement was observed. This study reveals the fact that the Brownian motion parameter and boundary layer thickness have a direct relationship with temperature. Also, Brownian motion and thermophoresis contribute to an increase in the thermal boundary layer thickness. Originality/value Despite the immense significance and repeated employment of non-Newtonian fluids in industry and science, no attempt has been made up till now to inspect the Casson nanofluid flow with a permeable nonlinear stretching surface.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Muhammad Jawad ◽  
Anwar Saeed ◽  
Taza Gul ◽  
Zahir Shah ◽  
Poom Kumam

AbstractIn the current work, the unsteady thermal flow of Maxwell power-law nanofluid with Welan gum solution on a stretching surface has been considered. The flow is also exposed to Joule heating and magnetic effects. The Marangoni convection equation is also proposed for current investigation in light of the constitutive equations for the Maxwell power law model. For non-dimensionalization, a group of similar variables has been employed to obtain a set of ordinary differential equations. This set of dimensionless equations is then solved with the help of the homotopy analysis method (HAM). It has been established in this work that, the effects of momentum relaxation time upon the thickness of the film is quite obvious in comparison to heat relaxation time. It is also noticed in this work that improvement in the Marangoni convection process leads to a decline in the thickness of the fluid’s film.


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