Startup Characteristics of a Centrifugal Pump Delivering Gas-Liquid Two-Phase Flow
The transient performance of centrifugal pumps during the startup period has drawn more and more attention in recent years due to urgent engineering needs. In order to make certain the transient startup characteristics of a high specific-speed prototype centrifugal pump delivering the gas-liquid two...
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| Veröffentlicht in: | Advances in Mechanical Engineering 2014-01, Vol.6, p.782619 |
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| creator | Zhang, Yu-Liang Xiao, Jun-Jian Yu, Jian-Ping Ji, Ying-Yu |
| description | The transient performance of centrifugal pumps during the startup period has drawn more and more attention in recent years due to urgent engineering needs. In order to make certain the transient startup characteristics of a high specific-speed prototype centrifugal pump delivering the gas-liquid two-phase flow, the transient flows inside the pump are numerically simulated during the startup period using the dynamic slip region method in this paper. The results show that the difference in heads mainly focuses on the later stage of the startup period when the pump is used to transmit the pure water and the gas-liquid two-phase flow, respectively. The existence of the gas phase makes the head less than that of delivering pure water. The nondimensional head coefficient is very high at the very beginning of the startup period and then quickly drops to a stable value. The continuous variation of the attack angle at the leading edges of blades is the main reason for evolution of the internal flow field during the startup period. |
| doi_str_mv | 10.1155/2014/782619 |
| format | Article |
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In order to make certain the transient startup characteristics of a high specific-speed prototype centrifugal pump delivering the gas-liquid two-phase flow, the transient flows inside the pump are numerically simulated during the startup period using the dynamic slip region method in this paper. The results show that the difference in heads mainly focuses on the later stage of the startup period when the pump is used to transmit the pure water and the gas-liquid two-phase flow, respectively. The existence of the gas phase makes the head less than that of delivering pure water. The nondimensional head coefficient is very high at the very beginning of the startup period and then quickly drops to a stable value. The continuous variation of the attack angle at the leading edges of blades is the main reason for evolution of the internal flow field during the startup period.</description><identifier>ISSN: 1687-8132</identifier><identifier>ISSN: 1687-8140</identifier><identifier>EISSN: 1687-8140</identifier><identifier>EISSN: 1687-8132</identifier><identifier>DOI: 10.1155/2014/782619</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Pumps ; Studies ; Vortices</subject><ispartof>Advances in Mechanical Engineering, 2014-01, Vol.6, p.782619</ispartof><rights>2014 Yu-Liang Zhang et al.</rights><rights>Copyright © 2014 Yu-Liang Zhang et al. Yu-Liang Zhang et al. 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In order to make certain the transient startup characteristics of a high specific-speed prototype centrifugal pump delivering the gas-liquid two-phase flow, the transient flows inside the pump are numerically simulated during the startup period using the dynamic slip region method in this paper. The results show that the difference in heads mainly focuses on the later stage of the startup period when the pump is used to transmit the pure water and the gas-liquid two-phase flow, respectively. The existence of the gas phase makes the head less than that of delivering pure water. The nondimensional head coefficient is very high at the very beginning of the startup period and then quickly drops to a stable value. The continuous variation of the attack angle at the leading edges of blades is the main reason for evolution of the internal flow field during the startup period.</description><subject>Pumps</subject><subject>Studies</subject><subject>Vortices</subject><issn>1687-8132</issn><issn>1687-8140</issn><issn>1687-8140</issn><issn>1687-8132</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>AFRWT</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>DOA</sourceid><recordid>eNptkV1LwzAUhosoOHRX_oGAN4JUkyZpmkupX4OBQ-d1SNOTmtEtW9Iq_ns7K-KFVzmEh-d8vElyRvAVIZxfZ5iwa1FkOZEHyYTkhUgLwvDhb02z42Qao6swxznGuZST5Pml06Hrt6h800GbDoKLnTMReYs0KmHTBWf7Rrdo0a-36BZa9z4wmwY96JjO3a53NVp--HTxpiOg-9Z_nCZHVrcRpj_vSfJ6f7csH9P508OsvJmnmlPapVYMc2SkYtbkVIi6BisZwUZIWjAMALbinFtb2FoUUrKKVzqnNNcFxrgWjJ4ks9Fbe71S2-DWOnwqr536_vChUcNqzrSgBCYgwdSZAM7MoMh5ZmpgssqMxFQOrvPRtQ1-10Ps1Mr3YTOMrwhnQg63zfbU5UiZ4GMMYH-7Eqz2Gah9BmrMYKAvRjrqBv74_kG_AG3bg3o</recordid><startdate>20140101</startdate><enddate>20140101</enddate><creator>Zhang, Yu-Liang</creator><creator>Xiao, Jun-Jian</creator><creator>Yu, Jian-Ping</creator><creator>Ji, Ying-Yu</creator><general>SAGE Publications</general><general>Sage Publications Ltd</general><general>SAGE Publishing</general><scope>AFRWT</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>L7M</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>DOA</scope></search><sort><creationdate>20140101</creationdate><title>Startup Characteristics of a Centrifugal Pump Delivering Gas-Liquid Two-Phase Flow</title><author>Zhang, Yu-Liang ; Xiao, Jun-Jian ; Yu, Jian-Ping ; Ji, Ying-Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a533t-f7b0521b4fc6377ddef9410c793840eeefb555ff8fd78994b5ba6336a8000d743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Pumps</topic><topic>Studies</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Yu-Liang</creatorcontrib><creatorcontrib>Xiao, Jun-Jian</creatorcontrib><creatorcontrib>Yu, Jian-Ping</creatorcontrib><creatorcontrib>Ji, Ying-Yu</creatorcontrib><collection>Sage Journals GOLD Open Access 2024</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Advances in Mechanical Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Yu-Liang</au><au>Xiao, Jun-Jian</au><au>Yu, Jian-Ping</au><au>Ji, Ying-Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Startup Characteristics of a Centrifugal Pump Delivering Gas-Liquid Two-Phase Flow</atitle><jtitle>Advances in Mechanical Engineering</jtitle><date>2014-01-01</date><risdate>2014</risdate><volume>6</volume><spage>782619</spage><pages>782619-</pages><issn>1687-8132</issn><issn>1687-8140</issn><eissn>1687-8140</eissn><eissn>1687-8132</eissn><abstract>The transient performance of centrifugal pumps during the startup period has drawn more and more attention in recent years due to urgent engineering needs. In order to make certain the transient startup characteristics of a high specific-speed prototype centrifugal pump delivering the gas-liquid two-phase flow, the transient flows inside the pump are numerically simulated during the startup period using the dynamic slip region method in this paper. The results show that the difference in heads mainly focuses on the later stage of the startup period when the pump is used to transmit the pure water and the gas-liquid two-phase flow, respectively. The existence of the gas phase makes the head less than that of delivering pure water. The nondimensional head coefficient is very high at the very beginning of the startup period and then quickly drops to a stable value. The continuous variation of the attack angle at the leading edges of blades is the main reason for evolution of the internal flow field during the startup period.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1155/2014/782619</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Pumps Studies Vortices |
| title | Startup Characteristics of a Centrifugal Pump Delivering Gas-Liquid Two-Phase Flow |
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