Results 161 to 170 of about 11,283 (193)

Critical review of the definitions of the Bejan number - first law of thermodynamics

International Communications in Heat and Mass Transfer, 2021
Abstract This paper is an extension of our recently published paper (Zimparov et al., 2020 [ 1 ]), proving that the unique form of the Bejan number (Be) is derived from the classic fluid mechanics and that the other forms, derived from the first law of thermodynamics (related to the convection heat or mass transfer), are combination of unique Bejan ...
Ventsislav D. Zimparov, Milcho S. Angelov, Jordan Hristov   +2 more
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Response to “Comments on “New insight into the definitions of the Bejan number””

International Communications in Heat and Mass Transfer, 2021
Abstract The present paper is a response to “Comments on “New insight into the definitions of the Bejan number”” [1] and aims at to increase the acquaintance of the readers of the International Communications of Heat and Mass Transfer, with the unique Bejan number and its scope of implementation.
Ventsislav D. Zimparov, Jordan Hristov, Milcho S. Angelov   +2 more
openalex   +2 more sources

New insight into the definitions of the Bejan number

International Communications in Heat and Mass Transfer, 2020
Abstract This paper presents new insight concerning the formulation and definition of one of the two Bejan numbers (Be) derived from the first and second law analysis, namely this one derived from the first law of thermodynamics. The systematic analysis performed reveals the role and physical meaning of the Bejan number (Be) as criterion of ...
Ventsislav D. Zimparov, Milcho S. Angelov, Jordan Hristov   +2 more
openalex   +2 more sources

Comments on “New insight into the definitions of the Bejan number”

International Communications in Heat and Mass Transfer, 2020
Abstract These notes aim to increase the awareness of the concept of Bejan Number among the readers of International Communications in Heat and Mass Transfer. They refer to the paper of Zimparov et al. because the authors, in their outstanding commentary on Bejan number neglect both the possible confusion which may arise between Hagen Number and ...
Michele Trancossi, José Páscoa, G. Cannistraro   +2 more
openalex   +2 more sources

Numerical treatment of entropy generation and Bejan number into an electroosmotically-driven flow of Sutterby nanofluid in an asymmetric microchannel

Numerical Heat Transfer, Part B: Fundamentals
This article aims to investigate the electrokinetic peristaltic flow of the Sutterby nanofluid through an asymmetric microchannel with a porous medium and the Joule heating parameter. The magnetic field is applied in the transverse direction and the electric field on the flow direction.
P. Praveen Kumar, S. Balakrishnan, A. Magesh, P. Tamizharasi, Sara I. Abdelsalam   +4 more
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Analysis of Bejan number and Entropy generation of Non-Newtonian nanofluid through an asymmetric microchannel

Numerical Heat Transfer, Part A: Applications, 2023
A. Magesh, P. Tamizharasi, J. Kamalakkannan   +2 more
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Numerical study of mixed convection flow of two-phase nanofluid in a two-dimensional cavity with the presence of a magnetic field by changing the height of obstacles with artificial intelligence: Investigation of entropy production changes and Bejan number

Engineering Analysis with Boundary Elements, 2022
Jincheng Zhou, Masood Ashraf Ali, Asˈad Alizadeh, Kamal Sharma   +3 more
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Entropy generation and Bejan number optimization in fractional dusty nanofluid of free convectional flow

Journal of the Korean Physical Society
Gohar Ali, Dolat Khan, Zeeshan Ali, Hassan Ali Ghazwani   +3 more
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Unsteady MHD flow analysis of hybrid nanofluid over a shrinking surface with porous media and heat generation: Computational study on entropy generation and Bejan number

International Journal of Heat and Fluid Flow
Khadija Rafique, Zafar Mahmood, Adnan Abbasi, Umar Khan, Taseer Muhammad, Ahmed Mir, Walid Aich, Lioua Kolsi   +7 more
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Study of Bejan number and entropy generation for mixed convection of nanofluid flow inside a chamber under an inclined magnetic field

Journal of Magnetism and Magnetic Materials
Saeed Alqaed, Fahad Awjah Almehmadi, Mohsen Sharifpur, Jawed Mustafa   +3 more
openalex   +2 more sources