Cargando…

Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode

The study of Von Kármán swirling flow is a subject of active interest due to its applications in a wide range of fields, including biofuel manufacturing, rotating heat exchangers, rotating disc reactors, liquid metal pumping engines, food processing, electric power generating systems, designs of mul...

Descripción completa

Detalles Bibliográficos
Autores principales: Visuvasam, James, Alotaibi, Hammad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10056891/
https://www.ncbi.nlm.nih.gov/pubmed/36984988
http://dx.doi.org/10.3390/mi14030582
_version_ 1785016234002087936
author Visuvasam, James
Alotaibi, Hammad
author_facet Visuvasam, James
Alotaibi, Hammad
author_sort Visuvasam, James
collection PubMed
description The study of Von Kármán swirling flow is a subject of active interest due to its applications in a wide range of fields, including biofuel manufacturing, rotating heat exchangers, rotating disc reactors, liquid metal pumping engines, food processing, electric power generating systems, designs of multi-pore distributors, and many others. This paper focusses on investigating Von Kármán swirling flows of viscous incompressible fluid due to a rotating disk electrode. The model is based on a system of four coupled second-order non-linear differential equations. The purpose of the present communication is to derive analytical expressions of velocity components by solving the non-linear equations using the homotopy analysis method. Combined effects of the slip λ and porosity γ parameters are studied in detail. If either parameter is increased, all velocity components are reduced, as both have the same effect on the mean velocity profiles. The porosity parameter γ increases the moment coefficient at the disk surface, which monotonically decreases with the slip parameter λ. The analytical results are also compared with numerical solutions, which are in satisfactory agreement. Furthermore, the effects of porosity and slip parameters on velocity profiles are discussed.
format Online
Article
Text
id pubmed-10056891
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-100568912023-03-30 Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode Visuvasam, James Alotaibi, Hammad Micromachines (Basel) Article The study of Von Kármán swirling flow is a subject of active interest due to its applications in a wide range of fields, including biofuel manufacturing, rotating heat exchangers, rotating disc reactors, liquid metal pumping engines, food processing, electric power generating systems, designs of multi-pore distributors, and many others. This paper focusses on investigating Von Kármán swirling flows of viscous incompressible fluid due to a rotating disk electrode. The model is based on a system of four coupled second-order non-linear differential equations. The purpose of the present communication is to derive analytical expressions of velocity components by solving the non-linear equations using the homotopy analysis method. Combined effects of the slip λ and porosity γ parameters are studied in detail. If either parameter is increased, all velocity components are reduced, as both have the same effect on the mean velocity profiles. The porosity parameter γ increases the moment coefficient at the disk surface, which monotonically decreases with the slip parameter λ. The analytical results are also compared with numerical solutions, which are in satisfactory agreement. Furthermore, the effects of porosity and slip parameters on velocity profiles are discussed. MDPI 2023-02-28 /pmc/articles/PMC10056891/ /pubmed/36984988 http://dx.doi.org/10.3390/mi14030582 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Visuvasam, James
Alotaibi, Hammad
Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode
title Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode
title_full Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode
title_fullStr Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode
title_full_unstemmed Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode
title_short Analysis of Von Kármán Swirling Flows Due to a Porous Rotating Disk Electrode
title_sort analysis of von kármán swirling flows due to a porous rotating disk electrode
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10056891/
https://www.ncbi.nlm.nih.gov/pubmed/36984988
http://dx.doi.org/10.3390/mi14030582
work_keys_str_mv AT visuvasamjames analysisofvonkarmanswirlingflowsduetoaporousrotatingdiskelectrode
AT alotaibihammad analysisofvonkarmanswirlingflowsduetoaporousrotatingdiskelectrode