Improvements in Fixed-Valve Micropump Performance Through Shape Optimization of Valves
The fixed-geometry valve micropump is a seemingly simple device in which the interaction between mechanical, electrical, and fluidic components produces a maximum output near resonance. This type of pump offers advantages such as scalability, durability, and ease of fabrication in a variety of mater...
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| Veröffentlicht in: | Journal of fluids engineering 2005-03, Vol.127 (2), p.339-346 |
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| container_title | Journal of fluids engineering |
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| creator | Gamboa, Adrian R. Morris, Christopher J. Forster, Fred K. |
| description | The fixed-geometry valve micropump is a seemingly simple device in which the interaction between mechanical, electrical, and fluidic components produces a maximum output near resonance. This type of pump offers advantages such as scalability, durability, and ease of fabrication in a variety of materials. Our past work focused on the development of a linear dynamic model for pump design based on maximizing resonance, while little has been done to improve valve shape. Here we present a method for optimizing valve shape using two-dimensional computational fluid dynamics in conjunction with an optimization procedure. A Tesla-type valve was optimized using a set of six independent, non-dimensional geometric design variables. The result was a 25% higher ratio of reverse to forward flow resistance (diodicity) averaged over the Reynolds number range 0 |
| doi_str_mv | 10.1115/1.1891151 |
| format | Article |
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This type of pump offers advantages such as scalability, durability, and ease of fabrication in a variety of materials. Our past work focused on the development of a linear dynamic model for pump design based on maximizing resonance, while little has been done to improve valve shape. Here we present a method for optimizing valve shape using two-dimensional computational fluid dynamics in conjunction with an optimization procedure. A Tesla-type valve was optimized using a set of six independent, non-dimensional geometric design variables. The result was a 25% higher ratio of reverse to forward flow resistance (diodicity) averaged over the Reynolds number range 0<Re⩽2000 compared to calculated values for an empirically designed, commonly used Tesla-type valve shape. The optimized shape was realized with no increase in forward flow resistance. A linear dynamic model, modified to include a number of effects that limit pump performance such as cavitation, was used to design pumps based on the new valve. Prototype plastic pumps were fabricated and tested. Steady-flow tests verified the predicted improvement in diodicity. More importantly, the modest increase in diodicity resulted in measured block-load pressure and no-load flow three times higher compared to an identical pump with non-optimized valves. The large performance increase observed demonstrated the importance of valve shape optimization in the overall design process for fixed-valve micropumps.</description><identifier>ISSN: 0098-2202</identifier><identifier>EISSN: 1528-901X</identifier><identifier>DOI: 10.1115/1.1891151</identifier><identifier>CODEN: JFEGA4</identifier><language>eng</language><publisher>New York, NY: ASME</publisher><subject>Applied sciences ; Exact sciences and technology ; Fluid dynamics ; Fundamental areas of phenomenology (including applications) ; General theory ; Mechanical engineering. Machine design ; Physics ; Precision engineering, watch making</subject><ispartof>Journal of fluids engineering, 2005-03, Vol.127 (2), p.339-346</ispartof><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a376t-fe2007bc94314b52f24460b44b17d917919909c13bd4d57fce5493bf0629b0453</citedby><cites>FETCH-LOGICAL-a376t-fe2007bc94314b52f24460b44b17d917919909c13bd4d57fce5493bf0629b0453</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925,38520</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16811606$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Gamboa, Adrian R.</creatorcontrib><creatorcontrib>Morris, Christopher J.</creatorcontrib><creatorcontrib>Forster, Fred K.</creatorcontrib><title>Improvements in Fixed-Valve Micropump Performance Through Shape Optimization of Valves</title><title>Journal of fluids engineering</title><addtitle>J. Fluids Eng</addtitle><description>The fixed-geometry valve micropump is a seemingly simple device in which the interaction between mechanical, electrical, and fluidic components produces a maximum output near resonance. This type of pump offers advantages such as scalability, durability, and ease of fabrication in a variety of materials. Our past work focused on the development of a linear dynamic model for pump design based on maximizing resonance, while little has been done to improve valve shape. Here we present a method for optimizing valve shape using two-dimensional computational fluid dynamics in conjunction with an optimization procedure. A Tesla-type valve was optimized using a set of six independent, non-dimensional geometric design variables. The result was a 25% higher ratio of reverse to forward flow resistance (diodicity) averaged over the Reynolds number range 0<Re⩽2000 compared to calculated values for an empirically designed, commonly used Tesla-type valve shape. The optimized shape was realized with no increase in forward flow resistance. A linear dynamic model, modified to include a number of effects that limit pump performance such as cavitation, was used to design pumps based on the new valve. Prototype plastic pumps were fabricated and tested. Steady-flow tests verified the predicted improvement in diodicity. More importantly, the modest increase in diodicity resulted in measured block-load pressure and no-load flow three times higher compared to an identical pump with non-optimized valves. The large performance increase observed demonstrated the importance of valve shape optimization in the overall design process for fixed-valve micropumps.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Fluid dynamics</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>General theory</subject><subject>Mechanical engineering. Machine design</subject><subject>Physics</subject><subject>Precision engineering, watch making</subject><issn>0098-2202</issn><issn>1528-901X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNpFkM9LwzAYhoMoOKcHz15yUfDQmS9N0-Yo4nQwmeAc3kLaJi6jv0zaof71Rjfw9H2H533heRE6BzIBgOQGJpCJ8MABGkFCs0gQeDtEI0JEFlFK6DE68X5DCMQxy0ZoNas71251rZveY9vgqf3UZbRS1VbjJ1u4thvqDj9rZ1pXq6bQeLl27fC-xi9r1Wm86Hpb22_V27bBrcF_SX-KjoyqvD7b3zF6nd4v7x6j-eJhdnc7j1Sc8j4ymhKS5oVgMbA8oYYyxknOWA5pKSAVIAQRBcR5ycokNYVOmIhzQzgVOWFJPEZXu94g8TFo38va-kJXlWp0O3hJMy44z7IAXu_AYOS900Z2ztbKfUkg8nc5CXK_XGAv96XKF6oyLmhb_x_gGQAnPHAXO075WstNO7gmuEqWMAI0_gHWS3WK</recordid><startdate>20050301</startdate><enddate>20050301</enddate><creator>Gamboa, Adrian R.</creator><creator>Morris, Christopher J.</creator><creator>Forster, Fred K.</creator><general>ASME</general><general>American Society of Mechanical Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20050301</creationdate><title>Improvements in Fixed-Valve Micropump Performance Through Shape Optimization of Valves</title><author>Gamboa, Adrian R. ; Morris, Christopher J. ; Forster, Fred K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a376t-fe2007bc94314b52f24460b44b17d917919909c13bd4d57fce5493bf0629b0453</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Fluid dynamics</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>General theory</topic><topic>Mechanical engineering. Machine design</topic><topic>Physics</topic><topic>Precision engineering, watch making</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gamboa, Adrian R.</creatorcontrib><creatorcontrib>Morris, Christopher J.</creatorcontrib><creatorcontrib>Forster, Fred K.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of fluids engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gamboa, Adrian R.</au><au>Morris, Christopher J.</au><au>Forster, Fred K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improvements in Fixed-Valve Micropump Performance Through Shape Optimization of Valves</atitle><jtitle>Journal of fluids engineering</jtitle><stitle>J. Fluids Eng</stitle><date>2005-03-01</date><risdate>2005</risdate><volume>127</volume><issue>2</issue><spage>339</spage><epage>346</epage><pages>339-346</pages><issn>0098-2202</issn><eissn>1528-901X</eissn><coden>JFEGA4</coden><abstract>The fixed-geometry valve micropump is a seemingly simple device in which the interaction between mechanical, electrical, and fluidic components produces a maximum output near resonance. This type of pump offers advantages such as scalability, durability, and ease of fabrication in a variety of materials. Our past work focused on the development of a linear dynamic model for pump design based on maximizing resonance, while little has been done to improve valve shape. Here we present a method for optimizing valve shape using two-dimensional computational fluid dynamics in conjunction with an optimization procedure. A Tesla-type valve was optimized using a set of six independent, non-dimensional geometric design variables. The result was a 25% higher ratio of reverse to forward flow resistance (diodicity) averaged over the Reynolds number range 0<Re⩽2000 compared to calculated values for an empirically designed, commonly used Tesla-type valve shape. The optimized shape was realized with no increase in forward flow resistance. A linear dynamic model, modified to include a number of effects that limit pump performance such as cavitation, was used to design pumps based on the new valve. Prototype plastic pumps were fabricated and tested. Steady-flow tests verified the predicted improvement in diodicity. More importantly, the modest increase in diodicity resulted in measured block-load pressure and no-load flow three times higher compared to an identical pump with non-optimized valves. The large performance increase observed demonstrated the importance of valve shape optimization in the overall design process for fixed-valve micropumps.</abstract><cop>New York, NY</cop><pub>ASME</pub><doi>10.1115/1.1891151</doi><tpages>8</tpages></addata></record> |
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| ispartof | Journal of fluids engineering, 2005-03, Vol.127 (2), p.339-346 |
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| language | eng |
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| source | ASME Transactions Journals (Current) |
| subjects | Applied sciences Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) General theory Mechanical engineering. Machine design Physics Precision engineering, watch making |
| title | Improvements in Fixed-Valve Micropump Performance Through Shape Optimization of Valves |
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