CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve

The paper presents the CFD model of a load sensing directional control valve. The model was validated experimentally in terms of pressure drop and flow force at different positions of the spool. The spool position was imposed manually by means of a micrometric screw and a load cell was used for meas...

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Autores principales:	Fresia Paola, Rundo Massimo
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/9c64fbf3f0594a35b00fb3af5fda24aa
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spelling	oai:doaj.org-article:9c64fbf3f0594a35b00fb3af5fda24aa2021-11-08T15:18:51ZCFD Simulation of a Post-Compensated Load Sensing Directional Control Valve2267-124210.1051/e3sconf/202131205002https://doaj.org/article/9c64fbf3f0594a35b00fb3af5fda24aa2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/88/e3sconf_ati2021_05002.pdfhttps://doaj.org/toc/2267-1242The paper presents the CFD model of a load sensing directional control valve. The model was validated experimentally in terms of pressure drop and flow force at different positions of the spool. The spool position was imposed manually by means of a micrometric screw and a load cell was used for measuring the flow force. The CFD model was developed with the CAD-embedded tool FloEFD®. The model has been proved to be very reliable in estimating the pressure drop, moreover quite good results were obtained also in the evaluation of the flow force. The CFD simulations were used to tune the coefficients of a lumped parameter model of the valve, so that such a model can be efficiently used for the simulation of an entire hydraulic circuit. Moreover, the CFD model has been used as design tool for attenuating the detrimental effect of the flow force. In particular, the width of the land upstream of the metering edge has an influence on the resultant force on the spool. If was found that it is possible to significantly reduce the flow force at maximum opening with a relatively small increment of the pressure drop across the valve.Fresia PaolaRundo MassimoEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 312, p 05002 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Fresia Paola Rundo Massimo CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve
description	The paper presents the CFD model of a load sensing directional control valve. The model was validated experimentally in terms of pressure drop and flow force at different positions of the spool. The spool position was imposed manually by means of a micrometric screw and a load cell was used for measuring the flow force. The CFD model was developed with the CAD-embedded tool FloEFD®. The model has been proved to be very reliable in estimating the pressure drop, moreover quite good results were obtained also in the evaluation of the flow force. The CFD simulations were used to tune the coefficients of a lumped parameter model of the valve, so that such a model can be efficiently used for the simulation of an entire hydraulic circuit. Moreover, the CFD model has been used as design tool for attenuating the detrimental effect of the flow force. In particular, the width of the land upstream of the metering edge has an influence on the resultant force on the spool. If was found that it is possible to significantly reduce the flow force at maximum opening with a relatively small increment of the pressure drop across the valve.
format	article
author	Fresia Paola Rundo Massimo
author_facet	Fresia Paola Rundo Massimo
author_sort	Fresia Paola
title	CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve
title_short	CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve
title_full	CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve
title_fullStr	CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve
title_full_unstemmed	CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve
title_sort	cfd simulation of a post-compensated load sensing directional control valve
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/9c64fbf3f0594a35b00fb3af5fda24aa
work_keys_str_mv	AT fresiapaola cfdsimulationofapostcompensatedloadsensingdirectionalcontrolvalve AT rundomassimo cfdsimulationofapostcompensatedloadsensingdirectionalcontrolvalve
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CFD Simulation of a Post-Compensated Load Sensing Directional Control Valve

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