Entropy optimization analysis in MHD nanomaterials (TiO2-GO) flow with homogeneous and heterogeneous reactions

2020 ◽  
Vol 184 ◽  
pp. 105111 ◽  
Author(s):  
M. Ijaz Khan ◽  
Sohail A. Khan ◽  
T. Hayat ◽  
M. Imran Khan ◽  
A. Alsaedi
Chemosphere ◽  
2019 ◽  
Vol 234 ◽  
pp. 608-617 ◽  
Author(s):  
Xue Qi ◽  
Xinglong Pang ◽  
Yi Hong ◽  
Yaliang Wang ◽  
Shengrong Lou ◽  
...  

2018 ◽  
Vol 141 (2) ◽  
Author(s):  
Hang Xu

An investigation is made to study the Blasius flow of a nanofluid in the presence of homogeneous–heterogeneous chemical reactions. Here, the diffusion coefficients of the reactant and autocatalyst are considered to be in comparable sizes. The Buongiorno's mathematical model is applied in describing the behavior of nanofluids. Multiple solutions of the steady-state system of nonlinear ordinary differential equations are obtained. Results show that nanofluids significantly participate in the transport mechanism of the homogeneous–heterogeneous reactions, which play different roles in the procedures of homogeneous and heterogeneous reactions.


The paper presents an analytical solution for the dispersion of a solute in a liquid flowing between two parallel plates in the presence of an irreversible first-order chemical reaction. The effects of both homogeneous and heterogeneous reactions on the dispersion are studied under isothermal conditions. It is found that for homogeneous reaction in the bulk of the liquid, the effective Taylor diffusion coefficient decreases with increase in the reaction rate constant. Further for heterogeneous reaction at the catalytic walls, Taylor diffusion coefficient is also found to decrease with increase in the wall catalytic parameter for fixed reaction rate constant corresponding to the bulk reaction.


2008 ◽  
Vol 63 (2) ◽  
pp. 94-98 ◽  
Author(s):  
M. A. Gorbacheva ◽  
G. P. Shumakovich ◽  
O. V. Morozova ◽  
A. V. Strel’tsov ◽  
E. A. Zaitseva ◽  
...  

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