scholarly journals Dynamics of flow in trapezoidal enclosure having a heated inner circular cylinder containing Casson nanofluid

Heliyon ◽  
2021 ◽  
Vol 7 (7) ◽  
pp. e07683
Author(s):  
Mohammed Hirpho ◽  
Wubshet Ibrahim
Author(s):  
Firas A Alwawi ◽  
Hamzeh T Alkasasbeh ◽  
AM Rashad ◽  
Ruwaidiah Idris

In this work, efforts were taken to investigate the free convection of ethylene glycol-based Casson nanofluid and it is affected by a magnetic field about a horizontal circular cylinder. Three different types of oxide nanoparticles were used along with constant wall temperature. Tiwari and Das's nanofluid model was used to investigate the MHD free convective flow of Casson nanofluid. The transformed governing PDEs were solved via the Keller box method. Numerical and graphical findings were acquired by using MATLAB software, in addition to studying and analyzing the influence of related parameters, on the velocity, temperature, local skin friction coefficient, and local Nusselt number. The results demonstrate that copper oxide ethylene glycol-based Casson nanofluid has the lowest local Nusselt number, velocity and, it has the highest temperature. Also, our results were in excellent agreement with prior published results.


2020 ◽  
Vol 181 ◽  
pp. 105688 ◽  
Author(s):  
Farooq H. Ali ◽  
Hameed K. Hamzah ◽  
Ahmed Kadhim Hussein ◽  
Mohammad Y. Jabbar ◽  
Pouyan Talebizadehsardari

2010 ◽  
Vol 1 (1-2) ◽  
pp. 15-20 ◽  
Author(s):  
B. Bolló

Abstract The two-dimensional flow around a stationary heated circular cylinder at low Reynolds numbers of 50 < Re < 210 is investigated numerically using the FLUENT commercial software package. The dimensionless vortex shedding frequency (St) reduces with increasing temperature at a given Reynolds number. The effective temperature concept was used and St-Re data were successfully transformed to the St-Reeff curve. Comparisons include root-mean-square values of the lift coefficient and Nusselt number. The results agree well with available data in the literature.


2018 ◽  
Vol 49 (13) ◽  
pp. 1299-1321
Author(s):  
Xiaofeng Wang ◽  
Juntao Wang ◽  
Weizhong Dai

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