Numerical simulation and experimental research of cavitation nozzle based on equation curve

To further investigate and improve the cleaning ability of the cavitation nozzle, this paper proposes a new model that is based on the Helmholtz nozzle and with the quadratic equation curve as the outer contour of the cavitation chamber. First, the numerical simulation of the flow field in the nozzl...

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Autores principales:	Lifu Wang, Dongyan Shi, Zhixun Yang, Guangliang Li, Chunlong Ma, Dongze He, Liang Yan
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	cavitation jet cavitation model cavitation nozzle impact performance numerical simulation Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/c5002739730b4eac8eb22339e2af675d
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id	oai:doaj.org-article:c5002739730b4eac8eb22339e2af675d
record_format	dspace
spelling	oai:doaj.org-article:c5002739730b4eac8eb22339e2af675d2021-11-06T07:18:52ZNumerical simulation and experimental research of cavitation nozzle based on equation curve1606-97491607-079810.2166/ws.2021.058https://doaj.org/article/c5002739730b4eac8eb22339e2af675d2021-08-01T00:00:00Zhttp://ws.iwaponline.com/content/21/5/2261https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798To further investigate and improve the cleaning ability of the cavitation nozzle, this paper proposes a new model that is based on the Helmholtz nozzle and with the quadratic equation curve as the outer contour of the cavitation chamber. First, the numerical simulation of the flow field in the nozzle chamber was conducted using FLUENT software to analyze and compare the impact of the curve parameters and Reynolds number on the cleaning effect. Next, the flow field was captured by a high-speed camera in order to study the cavitation cycle and evolution process. Then, experiments were performed to compare the cleaning effect of the new nozzle with that of the Helmholtz nozzle. The study results demonstrate that effective cavitation does not occur when the diameter of the cavitation chamber is too large. For the new nozzle, with the increase of the Reynolds number, the degree of cavitation in the chamber first increases and then decreases; the cleaning effect is much better than that of a traditional Helmholtz nozzle under the same conditions; the nozzle has the best cleaning effect for the stand-off distance of 300 mm. HIGHLIGHTS A new type of cavitation nozzle based on the one-dimensional quadratic equation curve.; Through the orthogonalization experiment the optimal solution was obtained.; Explore the cavitation period and the change of bubble diameter and liquid volume fraction.; Explore the cleaning target distance and cleaning effect.; Verify the performance of new nozzles and traditional nozzles through experiments.;Lifu WangDongyan ShiZhixun YangGuangliang LiChunlong MaDongze HeLiang YanIWA Publishingarticlecavitation jetcavitation modelcavitation nozzleimpact performancenumerical simulationWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 5, Pp 2261-2272 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cavitation jet cavitation model cavitation nozzle impact performance numerical simulation Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	cavitation jet cavitation model cavitation nozzle impact performance numerical simulation Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Lifu Wang Dongyan Shi Zhixun Yang Guangliang Li Chunlong Ma Dongze He Liang Yan Numerical simulation and experimental research of cavitation nozzle based on equation curve
description	To further investigate and improve the cleaning ability of the cavitation nozzle, this paper proposes a new model that is based on the Helmholtz nozzle and with the quadratic equation curve as the outer contour of the cavitation chamber. First, the numerical simulation of the flow field in the nozzle chamber was conducted using FLUENT software to analyze and compare the impact of the curve parameters and Reynolds number on the cleaning effect. Next, the flow field was captured by a high-speed camera in order to study the cavitation cycle and evolution process. Then, experiments were performed to compare the cleaning effect of the new nozzle with that of the Helmholtz nozzle. The study results demonstrate that effective cavitation does not occur when the diameter of the cavitation chamber is too large. For the new nozzle, with the increase of the Reynolds number, the degree of cavitation in the chamber first increases and then decreases; the cleaning effect is much better than that of a traditional Helmholtz nozzle under the same conditions; the nozzle has the best cleaning effect for the stand-off distance of 300 mm. HIGHLIGHTS A new type of cavitation nozzle based on the one-dimensional quadratic equation curve.; Through the orthogonalization experiment the optimal solution was obtained.; Explore the cavitation period and the change of bubble diameter and liquid volume fraction.; Explore the cleaning target distance and cleaning effect.; Verify the performance of new nozzles and traditional nozzles through experiments.;
format	article
author	Lifu Wang Dongyan Shi Zhixun Yang Guangliang Li Chunlong Ma Dongze He Liang Yan
author_facet	Lifu Wang Dongyan Shi Zhixun Yang Guangliang Li Chunlong Ma Dongze He Liang Yan
author_sort	Lifu Wang
title	Numerical simulation and experimental research of cavitation nozzle based on equation curve
title_short	Numerical simulation and experimental research of cavitation nozzle based on equation curve
title_full	Numerical simulation and experimental research of cavitation nozzle based on equation curve
title_fullStr	Numerical simulation and experimental research of cavitation nozzle based on equation curve
title_full_unstemmed	Numerical simulation and experimental research of cavitation nozzle based on equation curve
title_sort	numerical simulation and experimental research of cavitation nozzle based on equation curve
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/c5002739730b4eac8eb22339e2af675d
work_keys_str_mv	AT lifuwang numericalsimulationandexperimentalresearchofcavitationnozzlebasedonequationcurve AT dongyanshi numericalsimulationandexperimentalresearchofcavitationnozzlebasedonequationcurve AT zhixunyang numericalsimulationandexperimentalresearchofcavitationnozzlebasedonequationcurve AT guangliangli numericalsimulationandexperimentalresearchofcavitationnozzlebasedonequationcurve AT chunlongma numericalsimulationandexperimentalresearchofcavitationnozzlebasedonequationcurve AT dongzehe numericalsimulationandexperimentalresearchofcavitationnozzlebasedonequationcurve AT liangyan numericalsimulationandexperimentalresearchofcavitationnozzlebasedonequationcurve
_version_	1718443819797577728

Numerical simulation and experimental research of cavitation nozzle based on equation curve

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