Variable Conductivity, Chemical Reaction, Heat Source or Sink and Thermal Radiation Dissipative Natural Convective Blasius and Sakiadis Flows in a Suspension of Active Passive Flow Conditions

2018 ◽  
Vol 8 (5) ◽  
pp. 947-956
Author(s):  
O. Ramakrishna ◽  
K. Jayalakshmi ◽  
K. Chenna Kesavulu
Keyword(s):  
Heat Source ◽  
Thermal Radiation ◽  
Chemical Reaction ◽  
Flow Conditions ◽  
Reaction Heat ◽  
Passive Flow ◽  
Variable Conductivity

Investigation on Magneto Eyring-Powell nanofluid flow over inclined stretching cylinder with nolinear thermal radiation and Joule heating effect

2019 ◽  
Vol 16 (1) ◽  
pp. 51-63 ◽  
Author(s):  
S.S. Ghadikolaei ◽  
Kh. Hosseinzadeh ◽  
D.D. Ganji
Keyword(s):  
Thermal Radiation ◽  
Chemical Reaction ◽  
Joule Heating ◽  
Flow Profile ◽  
Heating Effect ◽  
Reaction Heat ◽  
Radiation Chemical ◽  
Content Type ◽  
Buongiorno’S Model ◽  
Joule Heating Effect

Purpose The purpose of this study is, mixed convection on magnetohydrodynamic (MHD) flow of Eyring–Powell nanofluid over a stretching cylindrical surface in the presence of thermal radiation, chemical reaction, heat generation and Joule heating effect is investigated and analyzed. The Brownian motion and thermophoresis phenomenon are used to model nanoparticles (Buongiorno’s model). Design/methodology/approach The numerical method is applied to solve the governing equations. Obtained results from the effects of different parameters changes on velocity, temperature and concentration profiles are reported as diagrams. Findings As a result, velocity profile has been reduced by increasing the Hartman number (magnetic field parameter) because of the existence of Lorentz force and increasing Eyring–Powell fluid parameter. In addition, the nanoparticle concentration profile has been reduced because of increase in chemical reaction parameter. At the end, the effects of different parameters on skin friction coefficient and local Nusselt number are investigated. Originality/value Eyring–Powell nanofluid and MHD have significant influence on flow profile.

scholarly journals Chemically reactive MHD micropolar nanofluid flow with velocity slips and variable heat source/sink

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Abdullah Dawar ◽  
Zahir Shah ◽  
Poom Kumam ◽  
Hussam Alrabaiah ◽  
Waris Khan ◽  
...  
Keyword(s):  
Velocity Field ◽  
Heat Source ◽  
Thermal Radiation ◽  
Chemical Reaction ◽  
Biot Number ◽  
Velocity Slip ◽  
Nonlinear Thermal Radiation ◽  
Micropolar Nanofluid ◽  
Primary Order ◽  
Source Sink

AbstractThe two-dimensional electrically conducting magnetohydrodynamic flow of micropolar nanofluid over an extending surface with chemical reaction and secondary slips conditions is deliberated in this article. The flow of nanofluid is treated with heat source/sink and nonlinear thermal radiation impacts. The system of equations is solved analytically and numerically. Both analytical and numerical approaches are compared with the help of figures and tables. In order to improve the validity of the solutions and the method convergence, a descriptive demonstration of residual errors for various factors is presented. Also the convergence of an analytical approach is shown. The impacts of relevance parameters on velocity, micro-rotation, thermal, and concentration fields for first- and second-order velocity slips are accessible through figures. The velocity field heightens with the rise in micropolar, micro-rotation, and primary order velocity parameters, while other parameters have reducing impact on the velocity field. The micro-rotation field reduces with micro-rotation, secondary order velocity slip, and micropolar parameters but escalates with the primary order velocity slip parameter. The thermal field heightens with escalating non-uniform heat sink/source, Biot number, temperature ratio factor, and thermal radiation factor. The concentration field escalates with the increasing Biot number, while reduces with heightening chemical reaction and Schmidt number. The assessment of skin factor, thermal transfer, and mass transfer are calculated through tables.

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