Results 11 to 20 of about 11,283 (193)

Optimal spacings for channels with Hagen-Poiseuille fluid-flow and mass transfer - the role of the Bejan number

open access: goldThermal Science, 2021
This work is a continuation of the recent studies [1, 2], revealing that the unique form of the Bejan number is robust (unchangeable) and appears independently in all Hagen-Poiseuille fluid-flows with heat or mass transfer by convection. The other dimensionless groups, derived from the First law of thermodynamics (related to the convection ...
Ventsislav D. Zimparov   +2 more
openalex   +3 more sources

Unsteady MHD Non-Newtonian Heat Transfer Nanofluids with Entropy Generation Analysis [PDF]

open access: yesNonlinear Engineering, 2019
A theoretical study of unsteady magnetohydrodynamic boundary layer stagnation point flow, heat and mass transfer of a second grade electrically-conducting nanofluid from a horizontal stretching sheet with thermal slip and second order slip velocity ...
Shukla Nisha, Rana Puneet, Bég O. Anwar
doaj   +3 more sources

Entropy generation analysis for mixed convection flow of nanofluid due to vertical plate with chemical reaction effects [PDF]

open access: yesScientific Reports, 2023
The analysis have been presented to observe the optimized flow of Casson nanofluid conveying the applications of external heat generation and mixed convection features. The problem is further influenced by chemical reactive species with order one.
T. N. Abdelhameed
doaj   +2 more sources

Entropy analysis in mixed convective flow of hybrid nanofluid subject to melting heat and chemical reactions

open access: yesCase Studies in Thermal Engineering, 2022
The present study discloses entropy analysis in flow of hybrid nanofluid under the influences of magnetohydrodynamics, variable viscosity and mixed convection.
Zakir Hussain   +3 more
doaj   +1 more source

Entropy generation of MHD flow of sodium alginate (C6H9NAO7) fluid in thermal engineering

open access: yesScientific Reports, 2022
In this paper, impacts of magnetic field and porosity on the entropy generation of sodium-alginate (C6H9NaO7) fluid are studied. C6H9NaO7 is taken over a moving and heated vertical wall. Heat transfer is due to free convection.
T. N. Abdelhameed
doaj   +1 more source

Entropy generation of nanofluid flow in hexagonal microchannel

open access: yesJournal of Taibah University for Science, 2022
A new model for entropy generation number in hexagonal microchannel is developed going from the equation proposed by Bejan. The effect of Cu, CuO, Al2O3 and TiO2 mixed with pure water inside the microchannel is evaluated via entropy generation analysis ...
Mohamed Omri   +3 more
doaj   +1 more source

An assessment of the mathematical model for estimating of entropy optimized viscous fluid flow towards a rotating cone surface

open access: yesScientific Reports, 2021
Entropy optimization in convective viscous fluids flow due to a rotating cone is explored. Heat expression with heat source/sink and dissipation is considered. Irreversibility with binary chemical reaction is also deliberated. Nonlinear system is reduced
Yong-Min Li   +5 more
doaj   +1 more source

Modelling Entropy in Magnetized Flow of Eyring–Powell Nanofluid through Nonlinear Stretching Surface with Chemical Reaction: A Finite Element Method Approach

open access: yesNanomaterials, 2022
The present paper explores the two-dimensional (2D) incompressible mixed-convection flow of magneto-hydrodynamic Eyring–Powell nanofluid through a nonlinear stretching surface in the occurrence of a chemical reaction, entropy generation, and Bejan number
Salman Saleem   +6 more
doaj   +1 more source

Ternary hybrid nanofluid natural convection within a porous prismatic enclosure with two movable hot baffles: An approach to effective cooling

open access: yesCase Studies in Thermal Engineering, 2022
Natural convection heat transfer in a porous prismatic enclosure emplacing two movable hot baffles may well be executed in this research. The domain may be loaded with ternary hybrid nanofluid and the governing energy and Navier-Stokes equations might ...
Yabin Shao   +5 more
doaj   +1 more source

Successive over relaxation (SOR) methodology for convective triply diffusive magnetic flowing via a porous horizontal plate with diverse irreversibilities

open access: yesAin Shams Engineering Journal, 2023
Entropy generation and triple diffusive convection is not explored yet taking the combined effects of suction and magnetohydrodynamic in a flow through porous medium.
Xianqin Zhang   +7 more
doaj   +1 more source

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