scholarly journals Retraction Note to: Consequences of Binary Chemically Reactive Flow Configuration of Williamson Fluid with Entropy Optimization and Activation Energy

2021 ◽  
Vol 42 (12) ◽  
Author(s):  
M. Ijaz Khan ◽  
A. Alsaedi ◽  
Sumaira Qayyum ◽  
T. Hayat
Author(s):  
Faris Alzahrani ◽  
M. Ijaz Khan

The prime objective of binary chemical reaction (BCR) is concentrated on the study and optimization of chemical reaction to accomplish finest reactor design and performance, which elaborated the interfaces of flow phenomena, reaction kinetics and heat and mass transport. The reactor performance is likely to be linked to the reaction operating constraints and feed composition through the aforementioned factors. The applications of BCR are generally in the petroleum and petrochemical regions, but with the help of chemical engineering and reaction chemistry concepts, it could be used in different areas, like waste treatment, chemical pharmaceuticals, nanoparticles in advanced materials, microelectronics, enzyme technology, biochemical engineering, living systems, renewable energy systems, sustainable development, environment/pollution prevention, as well as to optimize a different reaction framework via simulation and modeling methodology. Owing such physical applications in mind, this research deals with the binary chemical reactive flow of non-Newtonian fluid (Walter’s B) subject to activation energy. Stagnation point is accounted. Radiative flux and ohmic heating effects are considered in the development of energy expression. Concentration and microorganism equations are considered. The governing system is altered to ordinary one through the important similarity variables. Results are obtained through bvp4c technique. All results are discussed graphically. Furthermore, surface drag force (skin friction) and heat and mass transfer (Nusselt and Sherwood) rates are calculated and displayed graphically. Significant results are listed in conclusion.


2019 ◽  
Vol 50 (9) ◽  
pp. 865-882 ◽  
Author(s):  
Muhammad Ijaz Khan ◽  
Sumaira Qayyum ◽  
Tufail A. Khan ◽  
M. Imran Khan ◽  
Tasawar Hayat ◽  
...  

2020 ◽  
Vol 184 ◽  
pp. 105130 ◽  
Author(s):  
Sumaira Qayyum ◽  
Tasawar Hayat ◽  
Mehreen Kanwal ◽  
Ahmed Alsaedi ◽  
M. Ijaz Khan

2020 ◽  
Vol 10 (8) ◽  
pp. 2673-2683 ◽  
Author(s):  
M. Ijaz Khan ◽  
M. Irfan ◽  
W. A. Khan ◽  
M. Waqas ◽  
Sadia Rashid

Author(s):  
T. Hayat ◽  
Sohail A. Khan ◽  
M. Ijaz Khan ◽  
A. Alsaedi

Abstract Here impact of activation energy in binary chemically reactive flow of third grade fluid is addressed. Flow is discussed by a stretchable rotating disk. Novel characteristics regarding thermophoresis and Brownian movement have been analyzed. Nonlinear thermal radiation is considered. Convergent series solutions to nonlinear problems are computed. Impacts of various physical parameters like Brownian motion parameter, Prandtl number, mixed convection parameter, thermophoresis parameter, radiation parameter, activation energy, chemical reaction and Schmidt number on the velocity, concentration and thermal fields are discussed and analyzed. Velocity, temperature and concentration gradients are computed and discussed through various flow variables. Their obtained results present that velocity, temperature, concentration fields are strongly depends on the flow parameters. Main conclusions are presented.


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