MHD natural convective flow of a polar fluid with Newtonian heat transfer in vertical concentric annuli

Abstract This work aims to determine the optimal heat sink fin shape to promote the efficient rise of hot air away from the heat sink. The heat transfer and convective flow dynamics external to a commercial Stirling engine are investigated. In particular, this study employs an adjoint optimization approach based on CFD simulations to determine the sensitivity of the objective function to the shape of the heat sink and influence on the natural convection heat flow away from the external heat sink. This deterministic optimization approach increases the heat transfer rate of the heat sink by nearly 20% in this study when performing a small number of design iterations.

High Levels of Heat Transfer Coefficient During Convective Flow Boiling for R134a

10.26678/abcm.evr2021.evr21-0008 ◽

1969 ◽

Author(s):

Rhandrey Maestri ◽

Guilherme Scagnolatto ◽

Cristiano Tibiriçá

Keyword(s):

Heat Transfer ◽

Heat Transfer Coefficient ◽

Transfer Coefficient ◽

Convective Flow ◽

Flow Boiling

Unified framework for buoyancy induced radiative-convective flow and heat transfer on hybrid unstructured meshes

International Journal of Heat and Mass Transfer ◽

10.1016/j.ijheatmasstransfer.2018.05.092 ◽

2018 ◽

Vol 126 ◽

pp. 908-925 ◽

Cited By ~ 4

Author(s):

Mukul Parmananda ◽

Amaresh Dalal ◽

Ganesh Natarajan

Keyword(s):

Heat Transfer ◽

Convective Flow ◽

Unstructured Meshes ◽

Unified Framework ◽

Flow And Heat Transfer

TAYLOR COLLOCATION SOLUTION OF CHANGEABLE MHD FREE CONVECTIVE FLOW AND HEAT TRANSFER ALONG A VERTICAL POROUS PLATE WITH VARIABLE SUCTION AND INTERNAL HEAT GENERATION

International Journal of Advance Engineering and Research Development ◽

10.21090/ijaerd.030243 ◽

2016 ◽

Vol 3 (02) ◽

Keyword(s):

Heat Transfer ◽

Heat Generation ◽

Convective Flow ◽

Porous Plate ◽

Internal Heat ◽

Internal Heat Generation ◽

Free Convective Flow ◽

Vertical Porous Plate ◽

Flow And Heat Transfer ◽

Collocation Solution

Mixed Convective Flow of Micropolar Nanofluid across a Horizontal Cylinder in Saturated Porous Medium

Applied Sciences ◽

10.3390/app9235241 ◽

2019 ◽

Vol 9 (23) ◽

pp. 5241 ◽

Cited By ~ 6

Author(s):

Ahmed M. Rashad ◽

Waqar A. Khan ◽

Saber M. M. EL-Kabeir ◽

Amal M. A. EL-Hakiem

Keyword(s):

Heat Transfer ◽

Porous Medium ◽

Convective Flow ◽

Volume Fraction ◽

Saturated Porous Medium ◽

Titania Nanoparticles ◽

Flow And Heat Transfer ◽

Micropolar Nanofluid ◽

Mixed Convective Flow ◽

The Impact

The micropolar nanofluids are the potential liquids that enhance the thermophysical features and ability of heat transportation instead of base liquids. Alumina and Titania nanoparticles are mixed in a micropolar fluid. The impact of convective boundary condition is also examined with assisting and opposing flows of both nanofluids. The main objective of this study is to investigate mixed convective flow and heat transfer of micropolar nanofluids across a cylinder in a saturated porous medium. Non-similar variables are used to make the governing equations dimensionless. The local similar and non-similar solutions are obtained by using the Runge-Kutta-Fehlberg method of seventh order. The impacts of various embedded variables on the flow and heat transfer of micropolar nanofluids are investigated and interpreted graphically. It is demonstrated that the skin friction and heat transfer rates depend on solid volume fraction of nanoparticles, Biot number, mixed convection, and material parameters.