Combined effects of partial slip and variable diffusion coefficient on mass and heat transfer subjected to chemical reaction

2020 ◽  
Vol 95 (3) ◽  
pp. 035222 ◽  
Author(s):  
M Nawaz ◽  
Shahid Rafiq ◽  
Imran Haider Qureshi ◽  
Salman Saleem
Keyword(s):  
Heat Transfer ◽  
Diffusion Coefficient ◽  
Chemical Reaction ◽  
Partial Slip ◽  
Combined Effects ◽  
Variable Diffusion Coefficient ◽  
Variable Diffusion ◽  
Mass And Heat Transfer

scholarly journals Cumulative Impact of Micropolar Fluid and Porosity on MHD Channel Flow: A Numerical Study

Coatings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 93
Author(s):  
Kottakkaran Sooppy Nisar ◽  
Aftab Ahmed Faridi ◽  
Sohail Ahmad ◽  
Nargis Khan ◽  
Kashif Ali ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Chemical Reaction ◽  
Micropolar Fluid ◽  
Numerical Study ◽  
Nonlinear Differential Equations ◽  
X Rays ◽  
Cumulative Impact ◽  
Transfer Rates ◽  
Mass And Heat Transfer ◽  
The Impact

The mass and heat transfer magnetohydrodynamic (MHD) flows have a substantial use in heat exchangers, electromagnetic casting, X-rays, the cooling of nuclear reactors, mass transportation, magnetic drug treatment, energy systems, fiber coating, etc. The present work numerically explores the mass and heat transportation flow of MHD micropolar fluid with the consideration of a chemical reaction. The flow is taken between the walls of a permeable channel. The quasi-linearization technique is utilized to solve the complex dynamical coupled and nonlinear differential equations. The consequences of the preeminent parameters are portrayed via graphs and tables. A tabular and graphical comparison evidently reveals a correlation of our results with the existing ones. A strong deceleration is found in the concentration due to the effect of a chemical reaction. Furthermore, the impact of the magnetic field force is to devaluate the mass and heat transfer rates not only at the lower but at the upper channel walls, likewise.

Description of segregation in a horizontal drum mixer by use of the diffusion equation

1988 ◽  
Vol 53 (4) ◽  
pp. 771-787 ◽  
Author(s):  
Vladimír Kudrna ◽  
Andrzej Rochowiecki
Keyword(s):  
Diffusion Coefficient ◽  
Diffusion Equation ◽  
Two Dimensions ◽  
Solid Particles ◽  
Axial Segregation ◽  
Variable Diffusion Coefficient ◽  
Drum Mixer ◽  
Forward Diffusion ◽  
Variable Diffusion ◽  
Horizontal Drum

An attempt has been made to describe the axial segregation of solid particles of two dimensions in a horizontal drum mixer. For this purpose the Kolmogorov's forward diffusion equation with variable diffusion coefficient and zero drift velocity was used. For the case of "pure" segregation this approach has given good results.

scholarly journals MODELING OF BASIL ESSENTIAL OIL EXTRACTION WITH VARIABLE DIFFUSION COEFFICIENT

2017 ◽  
Vol 37 (4) ◽  
pp. 717-726 ◽  
Author(s):  
Jeniffer C. Silveira ◽  
Andréa O. S. da Costa ◽  
Esly F. da Costa Junior
Keyword(s):  
Diffusion Coefficient ◽  
Essential Oil ◽  
Oil Extraction ◽  
Variable Diffusion Coefficient ◽  
Variable Diffusion

scholarly journals On Combined Effects of Heat Transfer and Chemical Reaction for the Flow through an Asymmetric Channel with Orthogonally Deformable Porous Walls

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Syed Tauseef Mohyud-Din ◽  
Naveed Ahmed ◽  
Umar Khan ◽  
Asif Waheed ◽  
Saqib Hussain ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Chemical Reaction ◽  
Residual Error ◽  
Combined Effects ◽  
Asymmetric Channel ◽  
Analysis Method ◽  
Homotopy Analysis ◽  
Flow Through ◽  
Optimal Values ◽  
Porous Walls

The combined effects of heat transfer and chemical reaction are studied for the flow through a semi-infinite asymmetric channel with orthogonally deformable porous walls. The similarity transforms have been used to reduce the conservation laws to a corresponding system of nonlinear ordinary differential equations. The resulting equations are solved, both analytically and numerically, by using Homotopy Analysis Method (HAM) and the fourth-order Runge-Kutta (RK-4) method, respectively. The convergence of the analytical solution is assured through the so-called total squared residual error analysis. The optimal values of auxiliary parameters are obtained by minimizing the total squared residual error.

Sign in / Sign up

Export Citation Format

Share Document