EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/196172 |
Resumo: | In refrigeration compressors, the suction and discharge valves are responsible for the retention of the refrigerant from the suction chamber to the cylinder and passage from the cylinder to the discharge chamber. As the opening and closing of the valves are caused by the forces produced by the refrigerant flow, the understanding of the flow through the valve is of fundamental importance in order to enhance the efficiency of the valve system. The numerical simulation of the flow is an efficient method to perform this task. Due to the complex geometry usually found in this type of valve, simplified geometries have been used to represent the valve, particularly the radial diffuser. This work presents a numerical simulation of the unsteady flow through a more realistic geometric model for the suction valve including the movement of the reed. An Immersed Boundary Method (IBM) with the Multi-Direct Forcing Scheme is used to represent the valve geometry and to solve the 3D unsteady flow for an imposed angular movement to the reed. An adaptive mesh dynamically refined is used for representing the flow domain. The governing equations are solved by a projection method, using a semi-implicit second-order scheme for time integration. The systems of algebraic equations are solved by a Multigrid-Multilevel technique. Results for pressure and velocity fields and for pressure profiles on the reed surface were obtained for Reynolds number varying from 1,000 to 8,000. The results show that the IBM is a very good alternative for solving the flow through reed type valves with complex geometry. |
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EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVESImmersed Boundary MethodFluid-Structure InteractionCompressorValveIn refrigeration compressors, the suction and discharge valves are responsible for the retention of the refrigerant from the suction chamber to the cylinder and passage from the cylinder to the discharge chamber. As the opening and closing of the valves are caused by the forces produced by the refrigerant flow, the understanding of the flow through the valve is of fundamental importance in order to enhance the efficiency of the valve system. The numerical simulation of the flow is an efficient method to perform this task. Due to the complex geometry usually found in this type of valve, simplified geometries have been used to represent the valve, particularly the radial diffuser. This work presents a numerical simulation of the unsteady flow through a more realistic geometric model for the suction valve including the movement of the reed. An Immersed Boundary Method (IBM) with the Multi-Direct Forcing Scheme is used to represent the valve geometry and to solve the 3D unsteady flow for an imposed angular movement to the reed. An adaptive mesh dynamically refined is used for representing the flow domain. The governing equations are solved by a projection method, using a semi-implicit second-order scheme for time integration. The systems of algebraic equations are solved by a Multigrid-Multilevel technique. Results for pressure and velocity fields and for pressure profiles on the reed surface were obtained for Reynolds number varying from 1,000 to 8,000. The results show that the IBM is a very good alternative for solving the flow through reed type valves with complex geometry.UNESP Univ Estadual Paulista, Dept Mech Engn, Ave Brasil Ctr 56, BR-15385000 Ilha Solteira, SP, BrazilUniv Fed Uberlandia, Dept Mech Engn, BR-34800902 Uberlandia, MG, BrazilUNESP Univ Estadual Paulista, Dept Mech Engn, Ave Brasil Ctr 56, BR-15385000 Ilha Solteira, SP, BrazilInt Center Numerical Methods EngineeringUniversidade Estadual Paulista (Unesp)Universidade Federal de Uberlândia (UFU)Gasche, Jose L. [UNESP]Barbi, FrancoOnate, E.Oliver, XHuerta, A.2020-12-10T19:35:43Z2020-12-10T19:35:43Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject7053-706411th World Congress On Computational Mechanics; 5th European Conference On Computational Mechanics; 6th European Conference On Computational Fluid Dynamics, Vols V - Vi. 08034 Barcelona: Int Center Numerical Methods Engineering, p. 7053-7064, 2014.http://hdl.handle.net/11449/196172WOS:000485094604005Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng11th World Congress On Computational Mechanics; 5th European Conference On Computational Mechanics; 6th European Conference On Computational Fluid Dynamics, Vols V - Viinfo:eu-repo/semantics/openAccess2024-07-04T20:06:43Zoai:repositorio.unesp.br:11449/196172Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:13:03.532108Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES |
title |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES |
spellingShingle |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES Gasche, Jose L. [UNESP] Immersed Boundary Method Fluid-Structure Interaction Compressor Valve |
title_short |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES |
title_full |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES |
title_fullStr |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES |
title_full_unstemmed |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES |
title_sort |
EVALUATION OF AN IMMERSED BOUNDARY METHOD FOR SOLVING THE FLUID STRUCTURE INTERACTION PROBLEM IN REFRIGERATION COMPRESSOR VALVES |
author |
Gasche, Jose L. [UNESP] |
author_facet |
Gasche, Jose L. [UNESP] Barbi, Franco Onate, E. Oliver, X Huerta, A. |
author_role |
author |
author2 |
Barbi, Franco Onate, E. Oliver, X Huerta, A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Uberlândia (UFU) |
dc.contributor.author.fl_str_mv |
Gasche, Jose L. [UNESP] Barbi, Franco Onate, E. Oliver, X Huerta, A. |
dc.subject.por.fl_str_mv |
Immersed Boundary Method Fluid-Structure Interaction Compressor Valve |
topic |
Immersed Boundary Method Fluid-Structure Interaction Compressor Valve |
description |
In refrigeration compressors, the suction and discharge valves are responsible for the retention of the refrigerant from the suction chamber to the cylinder and passage from the cylinder to the discharge chamber. As the opening and closing of the valves are caused by the forces produced by the refrigerant flow, the understanding of the flow through the valve is of fundamental importance in order to enhance the efficiency of the valve system. The numerical simulation of the flow is an efficient method to perform this task. Due to the complex geometry usually found in this type of valve, simplified geometries have been used to represent the valve, particularly the radial diffuser. This work presents a numerical simulation of the unsteady flow through a more realistic geometric model for the suction valve including the movement of the reed. An Immersed Boundary Method (IBM) with the Multi-Direct Forcing Scheme is used to represent the valve geometry and to solve the 3D unsteady flow for an imposed angular movement to the reed. An adaptive mesh dynamically refined is used for representing the flow domain. The governing equations are solved by a projection method, using a semi-implicit second-order scheme for time integration. The systems of algebraic equations are solved by a Multigrid-Multilevel technique. Results for pressure and velocity fields and for pressure profiles on the reed surface were obtained for Reynolds number varying from 1,000 to 8,000. The results show that the IBM is a very good alternative for solving the flow through reed type valves with complex geometry. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 2020-12-10T19:35:43Z 2020-12-10T19:35:43Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
11th World Congress On Computational Mechanics; 5th European Conference On Computational Mechanics; 6th European Conference On Computational Fluid Dynamics, Vols V - Vi. 08034 Barcelona: Int Center Numerical Methods Engineering, p. 7053-7064, 2014. http://hdl.handle.net/11449/196172 WOS:000485094604005 |
identifier_str_mv |
11th World Congress On Computational Mechanics; 5th European Conference On Computational Mechanics; 6th European Conference On Computational Fluid Dynamics, Vols V - Vi. 08034 Barcelona: Int Center Numerical Methods Engineering, p. 7053-7064, 2014. WOS:000485094604005 |
url |
http://hdl.handle.net/11449/196172 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
11th World Congress On Computational Mechanics; 5th European Conference On Computational Mechanics; 6th European Conference On Computational Fluid Dynamics, Vols V - Vi |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
7053-7064 |
dc.publisher.none.fl_str_mv |
Int Center Numerical Methods Engineering |
publisher.none.fl_str_mv |
Int Center Numerical Methods Engineering |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129499613626368 |