Comment on “Transportation of hybrid nanoparticles in forced convective Darcy-Forchheimer flow by a rotating disk”, M. Ijaz Khan, ICHMT (2021)

Author(s):  
Prakash S. Hiremath
2018 ◽  
Vol 28 (11) ◽  
pp. 2531-2550 ◽  
Author(s):  
T. Hayat ◽  
Arsalan Aziz ◽  
Taseer Muhammad ◽  
A. Alsaedi

Purpose The purpose of this study is to examine the Darcy–Forchheimer flow of viscous nanoliquid because of a rotating disk. Thermophoretic diffusion and random motion aspects are retained. Heat and mass transfer features are analyzed through convective conditions. Design/methodology/approach The governing systems are solved numerically by the shooting technique. Findings Higher porosity parameter and Forchheimer number Fr depict similar trend for both velocity profiles f' and g. Both temperature and concentration profiles show increasing behavior for higher Forchheimer number Fr. An increase in Prandtl number Pr corresponds to lower temperature profile, while opposite trend is noticed for thermal Biot number. Larger concentration Biot number exhibits increasing behavior for both concentration and its associated layer thickness. Originality/value To the best of the author’s knowledge, no such consideration has been given in the literature yet.


2019 ◽  
Vol 97 (8) ◽  
pp. 856-863 ◽  
Author(s):  
Syed Muhammad Raza Shah Naqvi ◽  
Taseer Muhammad ◽  
Hyun Min Kim ◽  
Tariq Mahmood ◽  
Adnan Saeed ◽  
...  

Three-dimensional Darcy–Forchheimer flow of nanoliquid due to a rotating disk subject to multiple slip conditions is examined in this study. Thermophoresis and Brownian motion along with heat and mass transfer are incorporated. Slip conditions of velocity, concentration, and temperature are executed. Similarity results are established via MATLAB routine bvp4c. Graphs of velocities, temperature, and concentration are sketched to discuss the impacts of several influential parameters. Numerical values of skin frictions and local Sherwood and Nusselt numbers are calculated and inspected. Our findings display that concentration and temperature are enhanced for larger thermophoresis parameter.


Author(s):  
Tasawar Hayat ◽  
Farwa Haider ◽  
Taseer Muhammad ◽  
Ahmed Alsaedi

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