Effects of standoff distance on the supersonic flow fields in cold gas dynamic spraying
In this study, the effects of standoff distance (SoD) on the supersonic flow fields (including gas and particle flow fields) during cold gas dynamic spraying are investigated by means of computational fluid dynamics. The variation of velocity, temperature, pressure and density with different SoD is...
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| Veröffentlicht in: | Baosteel Technical Research 2011-03, Vol.5 (1), p.29-29 |
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| creator | Yujun, Zhang Yongli, Liang Junbao, Zhang |
| description | In this study, the effects of standoff distance (SoD) on the supersonic flow fields (including gas and particle flow fields) during cold gas dynamic spraying are investigated by means of computational fluid dynamics. The variation of velocity, temperature, pressure and density with different SoD is elucidated through the analysis of the distribution properties of the flow fields. It is found that the shock waves in front of the substrate remarkably influence the gas and particle flow fields. The wave system of expansion waves and pressure waves come into being continuously. The velocity of gas reaches the supersonic speed at the position of the Mach disc, while it decreases sharply when the gas flow crosses the Mach disc. The optimal SoDs are 40 mm for 1 mu m particles and 50 mm for both 5 mu m and 22 mu m particles. |
| doi_str_mv | 10.3969/j.issn.1674-3458.2011.01.006 |
| format | Article |
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The variation of velocity, temperature, pressure and density with different SoD is elucidated through the analysis of the distribution properties of the flow fields. It is found that the shock waves in front of the substrate remarkably influence the gas and particle flow fields. The wave system of expansion waves and pressure waves come into being continuously. The velocity of gas reaches the supersonic speed at the position of the Mach disc, while it decreases sharply when the gas flow crosses the Mach disc. The optimal SoDs are 40 mm for 1 mu m particles and 50 mm for both 5 mu m and 22 mu m particles.</description><identifier>ISSN: 1674-3458</identifier><identifier>DOI: 10.3969/j.issn.1674-3458.2011.01.006</identifier><language>eng</language><publisher>Advanced Technology Division,Research Institute,Baoshan Iron & Steel Co.,Ltd.,Shnnghai 201900,China</publisher><subject>Cold gas ; Density ; Discs ; Disks ; Dynamics ; Sod ; Spraying ; Supersonic flow</subject><ispartof>Baosteel Technical Research, 2011-03, Vol.5 (1), p.29-29</ispartof><rights>Copyright © Wanfang Data Co. Ltd. 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The optimal SoDs are 40 mm for 1 mu m particles and 50 mm for both 5 mu m and 22 mu m particles.</description><subject>Cold gas</subject><subject>Density</subject><subject>Discs</subject><subject>Disks</subject><subject>Dynamics</subject><subject>Sod</subject><subject>Spraying</subject><subject>Supersonic flow</subject><issn>1674-3458</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNo9kEtrwzAQhHVooSHNf9Ch0F7s6mXJPpaQPiDQS6BHI-vhyjiS67UJ-fd1SCkszDIz7MKH0AMlOa9k9dzlASDmVCqRcVGUOSOU5mQZIm_Q6t-_QxuAjhDCKimoFCv0tfPemQlw8hgmHW3yHttwWY3DKeLp22GYBzdCisFg36cT9sH1FnCI2KTe4lYDtueoj0sOw6jPIbb36NbrHtzmT9fo8Lo7bN-z_efbx_Zlnw2ykBnVpXNEUtZ409iSey9cIaRnTFEliSmrpqiY5ZxqXjaeWaWY8Y2ruNUlJYqv0eP17ElHr2Nbd2ke4_KwbtoOzt2FA6ELhaX5dG0OY_qZHUz1MYBxfa-jSzPUCw3GhCBK8V-TRGT2</recordid><startdate>20110301</startdate><enddate>20110301</enddate><creator>Yujun, Zhang</creator><creator>Yongli, Liang</creator><creator>Junbao, Zhang</creator><general>Advanced Technology Division,Research Institute,Baoshan Iron & Steel Co.,Ltd.,Shnnghai 201900,China</general><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20110301</creationdate><title>Effects of standoff distance on the supersonic flow fields in cold gas dynamic spraying</title><author>Yujun, Zhang ; Yongli, Liang ; Junbao, Zhang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p656-1a8ee0612bfcbd83ff4e546f2271760c89b592d331a38bf2d772cfbe93da81073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Cold gas</topic><topic>Density</topic><topic>Discs</topic><topic>Disks</topic><topic>Dynamics</topic><topic>Sod</topic><topic>Spraying</topic><topic>Supersonic flow</topic><toplevel>online_resources</toplevel><creatorcontrib>Yujun, Zhang</creatorcontrib><creatorcontrib>Yongli, Liang</creatorcontrib><creatorcontrib>Junbao, Zhang</creatorcontrib><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Baosteel Technical Research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yujun, Zhang</au><au>Yongli, Liang</au><au>Junbao, Zhang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of standoff distance on the supersonic flow fields in cold gas dynamic spraying</atitle><jtitle>Baosteel Technical Research</jtitle><date>2011-03-01</date><risdate>2011</risdate><volume>5</volume><issue>1</issue><spage>29</spage><epage>29</epage><pages>29-29</pages><issn>1674-3458</issn><abstract>In this study, the effects of standoff distance (SoD) on the supersonic flow fields (including gas and particle flow fields) during cold gas dynamic spraying are investigated by means of computational fluid dynamics. 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| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Cold gas Density Discs Disks Dynamics Sod Spraying Supersonic flow |
| title | Effects of standoff distance on the supersonic flow fields in cold gas dynamic spraying |
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