Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump

A jet pump is used to transport a variety of working media and is especially suitable for dredged soil transporting. In this study, a three-dimensional numerical study of a jet pump that is used for slurry delivery was carried out. The characteristics of the internal flow field of the mixing chamber...

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Autores principales:	Yi’nan Qian, Yuanshun Wang, Zhenlong Fang, Xiuhan Chen, Sape A. Miedema
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	jet pump slurry flow ratio efficiency CFD Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/aae377ba21054e968362b9b1716aa33f
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spelling	oai:doaj.org-article:aae377ba21054e968362b9b1716aa33f2021-11-25T18:51:50ZNumerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump10.3390/pr91120532227-9717https://doaj.org/article/aae377ba21054e968362b9b1716aa33f2021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/2053https://doaj.org/toc/2227-9717A jet pump is used to transport a variety of working media and is especially suitable for dredged soil transporting. In this study, a three-dimensional numerical study of a jet pump that is used for slurry delivery was carried out. The characteristics of the internal flow field of the mixing chamber with different working parameters were comprehensively analyzed. The results indicate that the pressure of the axial line decreases with increasing flow ratio (ratio of suction flux and inlet flux) while the pressure of the injected slurry shows a downward trend. With the increase in the flow ratio, the pressure ratio (difference between inlet pressure and suction pressure divided by the difference between exit pressure and suction pressure) falls off while the efficiency presents a parabolic distribution. The pressure ratio can be promoted by properly increasing the length of the mixing chamber so that the available efficiency is broadened. When the mixing chamber length is <i>L</i> = 2.5<i>D<sub>n</sub></i>~4.0<i>D<sub>n</sub></i> (<i>D<sub>n</sub></i> is nozzle outlet diameter), the highly efficient area is wide; in particular, when <i>L</i> = 3.5<i>D<sub>n</sub></i>, the jet slurry pump with the highest efficiency of 27.6% has the best performance.Yi’nan QianYuanshun WangZhenlong FangXiuhan ChenSape A. MiedemaMDPI AGarticlejet pumpslurryflow ratioefficiencyCFDChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 2053, p 2053 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	jet pump slurry flow ratio efficiency CFD Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	jet pump slurry flow ratio efficiency CFD Chemical technology TP1-1185 Chemistry QD1-999 Yi’nan Qian Yuanshun Wang Zhenlong Fang Xiuhan Chen Sape A. Miedema Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump
description	A jet pump is used to transport a variety of working media and is especially suitable for dredged soil transporting. In this study, a three-dimensional numerical study of a jet pump that is used for slurry delivery was carried out. The characteristics of the internal flow field of the mixing chamber with different working parameters were comprehensively analyzed. The results indicate that the pressure of the axial line decreases with increasing flow ratio (ratio of suction flux and inlet flux) while the pressure of the injected slurry shows a downward trend. With the increase in the flow ratio, the pressure ratio (difference between inlet pressure and suction pressure divided by the difference between exit pressure and suction pressure) falls off while the efficiency presents a parabolic distribution. The pressure ratio can be promoted by properly increasing the length of the mixing chamber so that the available efficiency is broadened. When the mixing chamber length is <i>L</i> = 2.5<i>D<sub>n</sub></i>~4.0<i>D<sub>n</sub></i> (<i>D<sub>n</sub></i> is nozzle outlet diameter), the highly efficient area is wide; in particular, when <i>L</i> = 3.5<i>D<sub>n</sub></i>, the jet slurry pump with the highest efficiency of 27.6% has the best performance.
format	article
author	Yi’nan Qian Yuanshun Wang Zhenlong Fang Xiuhan Chen Sape A. Miedema
author_facet	Yi’nan Qian Yuanshun Wang Zhenlong Fang Xiuhan Chen Sape A. Miedema
author_sort	Yi’nan Qian
title	Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump
title_short	Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump
title_full	Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump
title_fullStr	Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump
title_full_unstemmed	Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump
title_sort	numerical investigation of the flow field and mass transfer characteristics in a jet slurry pump
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/aae377ba21054e968362b9b1716aa33f
work_keys_str_mv	AT yinanqian numericalinvestigationoftheflowfieldandmasstransfercharacteristicsinajetslurrypump AT yuanshunwang numericalinvestigationoftheflowfieldandmasstransfercharacteristicsinajetslurrypump AT zhenlongfang numericalinvestigationoftheflowfieldandmasstransfercharacteristicsinajetslurrypump AT xiuhanchen numericalinvestigationoftheflowfieldandmasstransfercharacteristicsinajetslurrypump AT sapeamiedema numericalinvestigationoftheflowfieldandmasstransfercharacteristicsinajetslurrypump
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Numerical Investigation of the Flow Field and Mass Transfer Characteristics in a Jet Slurry Pump

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