CFD Simulation of stirling engines: A review

Stirling engines (SEs) have long attracted the attention of renewable energy researchers due to their external combustion design and flexibility in operating with various heat sources. The mathematical analysis of these devices is conducted by using a broad range of models ranging from basic zero-or...

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Autores:
Laín Beatove, Santiago
Vidal Medina, Juan Ricardo
Villamíl, Valentina
Tipo de recurso:
Article of investigation
Fecha de publicación:
2024
Institución:
Universidad Autónoma de Occidente
Repositorio:
RED: Repositorio Educativo Digital UAO
Idioma:
spa
OAI Identifier:
oai:red.uao.edu.co:10614/16167
Acceso en línea:
https://hdl.handle.net/10614/16167
https://doi.org/10.3390/pr12112360
https://red.uao.edu.co/
Palabra clave:
Numerical simulation
Stirling engine
CFD
Transient compressible flow
Dynamic meshes
Heat transfer
Simulación numérica
Motor Stirling
CFD
Flujo compresible transitorio
Mallas dinámicas
Transferencia de calor
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openAccess
License
Derechos reservados - MDPI, 2024
id REPOUAO2_94699d13c4c8e1f191a081de7027002b
oai_identifier_str oai:red.uao.edu.co:10614/16167
network_acronym_str REPOUAO2
network_name_str RED: Repositorio Educativo Digital UAO
repository_id_str
dc.title.eng.fl_str_mv CFD Simulation of stirling engines: A review
dc.title.alternative.spa.fl_str_mv Simulación CFD de motores Stirling: Una revisión
title CFD Simulation of stirling engines: A review
spellingShingle CFD Simulation of stirling engines: A review
Numerical simulation
Stirling engine
CFD
Transient compressible flow
Dynamic meshes
Heat transfer
Simulación numérica
Motor Stirling
CFD
Flujo compresible transitorio
Mallas dinámicas
Transferencia de calor
title_short CFD Simulation of stirling engines: A review
title_full CFD Simulation of stirling engines: A review
title_fullStr CFD Simulation of stirling engines: A review
title_full_unstemmed CFD Simulation of stirling engines: A review
title_sort CFD Simulation of stirling engines: A review
dc.creator.fl_str_mv Laín Beatove, Santiago
Vidal Medina, Juan Ricardo
Villamíl, Valentina
dc.contributor.author.none.fl_str_mv Laín Beatove, Santiago
Vidal Medina, Juan Ricardo
Villamíl, Valentina
dc.subject.proposal.eng.fl_str_mv Numerical simulation
Stirling engine
CFD
Transient compressible flow
Dynamic meshes
Heat transfer
topic Numerical simulation
Stirling engine
CFD
Transient compressible flow
Dynamic meshes
Heat transfer
Simulación numérica
Motor Stirling
CFD
Flujo compresible transitorio
Mallas dinámicas
Transferencia de calor
dc.subject.proposal.spa.fl_str_mv Simulación numérica
Motor Stirling
CFD
Flujo compresible transitorio
Mallas dinámicas
Transferencia de calor
description Stirling engines (SEs) have long attracted the attention of renewable energy researchers due to their external combustion design and flexibility in operating with various heat sources. The mathematical analysis of these devices is conducted by using a broad range of models ranging from basic zero-order to highly detailed fourth-order models, which are implemented through Computational Fluid Dynamics (CFD) simulations. The unique features of this last approach, combined with the increase in computing power, have promoted the use of CFD as a tool for analyzing SEs in recent years, significantly reducing the costs associated with prototype construction. However, Stirling CFD simulations are sophisticated due to the variety of physical phenomena involved, such as volume change, conjugated heat transfer, turbulent compressible fluid dynamics, and flow through porous media in the regenerator. Furthermore, there is currently no comprehensive review of CFD simulations of SEs in the literature; therefore, this contribution aims to fill that gap. Emphasis has been placed on identifying the type of engine, the physical phenomena modeled, the simplifying assumptions, and specific numerical aspects, such as mesh type, spatial and temporal discretization, and the order of the numerical schemes used. As a result, it has been found that in many cases, CFD numerical reports lack sufficient detail to ensure the reproducibility of the simulations. This work proposes guidelines for reporting CFD studies on Stirling engines to address this issue. Additionally, the need for a sufficiently detailed experimental benchmark database to validate future CFD studies is stressed. Finally, the use of Large Eddy Simulations on coupled key engine components—such as compression and expansion spaces, pistons, displacer, and regenerator—is suggested to provide further insights into the specific flow and heat transfer characteristics in Stirling engines
publishDate 2024
dc.date.issued.none.fl_str_mv 2024
dc.date.accessioned.none.fl_str_mv 2025-06-12T20:07:48Z
dc.date.available.none.fl_str_mv 2025-06-12T20:07:48Z
dc.type.spa.fl_str_mv Artículo de revista
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.coar.eng.fl_str_mv http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.content.eng.fl_str_mv Text
dc.type.driver.eng.fl_str_mv info:eu-repo/semantics/article
dc.type.redcol.eng.fl_str_mv http://purl.org/redcol/resource_type/ART
dc.type.version.eng.fl_str_mv info:eu-repo/semantics/publishedVersion
format http://purl.org/coar/resource_type/c_2df8fbb1
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dc.identifier.citation.spa.fl_str_mv Laín Beatove, S.; Vidal Medina, J. R. y Villamíl, V. (2024). CFD Simulation of stirling engines: A review. Processes 12(11). https://doi.org/10.3390/pr12112360
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10614/16167
dc.identifier.doi.spa.fl_str_mv https://doi.org/10.3390/pr12112360
dc.identifier.eissn.spa.fl_str_mv 22279717
dc.identifier.instname.spa.fl_str_mv Universidad Autónoma de Occidente
dc.identifier.reponame.spa.fl_str_mv Respositorio Educativo Digital UAO
dc.identifier.repourl.none.fl_str_mv https://red.uao.edu.co/
identifier_str_mv Laín Beatove, S.; Vidal Medina, J. R. y Villamíl, V. (2024). CFD Simulation of stirling engines: A review. Processes 12(11). https://doi.org/10.3390/pr12112360
22279717
Universidad Autónoma de Occidente
Respositorio Educativo Digital UAO
url https://hdl.handle.net/10614/16167
https://doi.org/10.3390/pr12112360
https://red.uao.edu.co/
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.citationendpage.spa.fl_str_mv 26
dc.relation.citationissue.spa.fl_str_mv 11
dc.relation.citationstartpage.spa.fl_str_mv 1
dc.relation.citationvolume.spa.fl_str_mv 12
dc.relation.ispartofjournal.eng.fl_str_mv Processes
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spelling Laín Beatove, Santiagovirtual::6088-1Vidal Medina, Juan Ricardovirtual::6089-1Villamíl, Valentina2025-06-12T20:07:48Z2025-06-12T20:07:48Z2024Laín Beatove, S.; Vidal Medina, J. R. y Villamíl, V. (2024). CFD Simulation of stirling engines: A review. Processes 12(11). https://doi.org/10.3390/pr12112360https://hdl.handle.net/10614/16167https://doi.org/10.3390/pr1211236022279717Universidad Autónoma de OccidenteRespositorio Educativo Digital UAOhttps://red.uao.edu.co/Stirling engines (SEs) have long attracted the attention of renewable energy researchers due to their external combustion design and flexibility in operating with various heat sources. The mathematical analysis of these devices is conducted by using a broad range of models ranging from basic zero-order to highly detailed fourth-order models, which are implemented through Computational Fluid Dynamics (CFD) simulations. The unique features of this last approach, combined with the increase in computing power, have promoted the use of CFD as a tool for analyzing SEs in recent years, significantly reducing the costs associated with prototype construction. However, Stirling CFD simulations are sophisticated due to the variety of physical phenomena involved, such as volume change, conjugated heat transfer, turbulent compressible fluid dynamics, and flow through porous media in the regenerator. Furthermore, there is currently no comprehensive review of CFD simulations of SEs in the literature; therefore, this contribution aims to fill that gap. Emphasis has been placed on identifying the type of engine, the physical phenomena modeled, the simplifying assumptions, and specific numerical aspects, such as mesh type, spatial and temporal discretization, and the order of the numerical schemes used. As a result, it has been found that in many cases, CFD numerical reports lack sufficient detail to ensure the reproducibility of the simulations. This work proposes guidelines for reporting CFD studies on Stirling engines to address this issue. Additionally, the need for a sufficiently detailed experimental benchmark database to validate future CFD studies is stressed. Finally, the use of Large Eddy Simulations on coupled key engine components—such as compression and expansion spaces, pistons, displacer, and regenerator—is suggested to provide further insights into the specific flow and heat transfer characteristics in Stirling enginesLos motores Stirling (SE) han atraído desde hace tiempo la atención de los investigadores de energías renovables debido a su diseño de combustión externa y su flexibilidad para operar con diversas fuentes de calor. El análisis matemático de estos dispositivos se realiza mediante una amplia gama de modelos, desde modelos básicos de orden cero hasta modelos de cuarto orden altamente detallados, que se implementan mediante simulaciones de Dinámica de Fluidos Computacional (CFD). Las características únicas de este último enfoque, combinadas con el aumento de la potencia de procesamiento, han promovido el uso de CFD como herramienta para analizar SE en los últimos años, reduciendo significativamente los costos asociados con la construcción de prototipos. Sin embargo, las simulaciones CFD de Stirling son sofisticadas debido a la variedad de fenómenos físicos involucrados, como el cambio de volumen, la transferencia de calor conjugada, la dinámica de fluidos compresibles turbulentos y el flujo a través de medios porosos en el regenerador. Además, actualmente no existe una revisión exhaustiva de las simulaciones CFD de SE en la literatura; por lo tanto, esta contribución busca llenar ese vacío. Se ha hecho hincapié en la identificación del tipo de motor, los fenómenos físicos modelados, las suposiciones simplificadoras y aspectos numéricos específicos, como el tipo de malla, la discretización espacial y temporal, y el orden de los esquemas numéricos utilizados. Como resultado, se ha encontrado que, en muchos casos, los informes numéricos de CFD carecen de suficiente detalle para garantizar la reproducibilidad de las simulaciones. Este trabajo propone directrices para informar estudios de CFD en motores Stirling para abordar este problema. Además, se enfatiza la necesidad de una base de datos de referencia experimental suficientemente detallada para validar futuros estudios de CFD. Finalmente, se sugiere el uso de simulaciones de grandes remolinos en componentes clave acoplados del motor, como espacios de compresión y expansión, pistones, desplazador y regenerador, para proporcionar una mayor comprensión de las características específicas de flujo y transferencia de calor en los motores Stirling26 páginasapplication/pdfspaMDPISuizaDerechos reservados - MDPI, 2024https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)http://purl.org/coar/access_right/c_abf2CFD Simulation of stirling engines: A reviewSimulación CFD de motores Stirling: Una revisiónArtículo de revistahttp://purl.org/coar/resource_type/c_2df8fbb1Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/version/c_970fb48d4fbd8a852611112Processes1. Moonka, G.; Surana, H.; Singh, H.R. 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