Unsteady Flow Field and Noise Characteristics of a Small Axial Flow Fan Used in Narrow Space
Unsteady flow field and noise characteristics of a small axial flow fan used in narrow spaces are experimentally studied. To simulate the flow field in narrow spaces, a flat plate is placed at a certain distance downstream of the fan outlet. By varying the spacing between the plate and the fan, the...
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| Veröffentlicht in: | Turbomachinery 2012, Vol.40(2), pp.114-122 |
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| Sprache: | eng ; jpn |
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| container_title | Turbomachinery |
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| creator | TANIGUCHI, Hideo FUNAZAKI, Ken-ichi TAKAHASHI, Tomoe CHIBA, Kouta |
| description | Unsteady flow field and noise characteristics of a small axial flow fan used in narrow spaces are experimentally studied. To simulate the flow field in narrow spaces, a flat plate is placed at a certain distance downstream of the fan outlet. By varying the spacing between the plate and the fan, the blockage effect on the fan exit flow and the associated noise level is investigated. The flow field at the location of 3mm downstream of the fan casing in the axial direction is measured using a three-dimensional laser Doppler velocimetry. As for fan noise, the tested fan is installed in an anechoic room, and the noise is measured with a microphone located 100mm upstream of the fan inlet. The experimental results show that the flow field downstream of the axial flow fan and the fan noise change significantly in accordance with the spacing between the fan exit and the blockage plate. |
| doi_str_mv | 10.11458/tsj.40.114 |
| format | Article |
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To simulate the flow field in narrow spaces, a flat plate is placed at a certain distance downstream of the fan outlet. By varying the spacing between the plate and the fan, the blockage effect on the fan exit flow and the associated noise level is investigated. The flow field at the location of 3mm downstream of the fan casing in the axial direction is measured using a three-dimensional laser Doppler velocimetry. As for fan noise, the tested fan is installed in an anechoic room, and the noise is measured with a microphone located 100mm upstream of the fan inlet. 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The experimental results show that the flow field downstream of the axial flow fan and the fan noise change significantly in accordance with the spacing between the fan exit and the blockage plate.</description><subject>Axial flow</subject><subject>Blockage</subject><subject>Cooling</subject><subject>Downstream effects</subject><subject>Fan</subject><subject>Flow Phenomenon</subject><subject>LDV</subject><subject>Microphones</subject><subject>Noise</subject><subject>Three dimensional</subject><subject>Turbomachinery</subject><subject>Unsteady flow</subject><issn>0385-8839</issn><issn>1880-2338</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNpdkE9LAzEQxYMoWGpPfoGAFy-ryebPZg8eSrEqlHqovQnL7CbRLOluTbZov73RFg9e3jCP3wyPh9AlJTeUcqFuh9je8N_lBI2oUiTLGVOnaESYEplSrDxHkxhdTQgVguVSjtDruouDAb3Hc99_4rkzXmPoNF72Lho8e4cAzWCCi4NrIu4tBrzagPd4-uXAH6-gw-toNHYdXkIIyVptoTEX6MyCj2ZynGO0nt-_zB6zxfPD02y6yFqagmSlLmsirJFAc0YY44WVHJhVmkgoSkaTWl2UhdY816xu6pzLQnBemKKxlrAxuj783Yb-Y2fiUG1cbIz30Jl-FyuanuScCiISevUPbftd6FK6RAkpJFesSNTdgWrjAG-m2ga3gbCvIKQWvKlS0xUnVf4jqe4_v0l1VaZj355id-g</recordid><startdate>20120101</startdate><enddate>20120101</enddate><creator>TANIGUCHI, Hideo</creator><creator>FUNAZAKI, Ken-ichi</creator><creator>TAKAHASHI, Tomoe</creator><creator>CHIBA, Kouta</creator><general>Turbomachinery Society of Japan</general><general>Japan Science and Technology Agency</general><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20120101</creationdate><title>Unsteady Flow Field and Noise Characteristics of a Small Axial Flow Fan Used in Narrow Space</title><author>TANIGUCHI, Hideo ; FUNAZAKI, Ken-ichi ; TAKAHASHI, Tomoe ; CHIBA, Kouta</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j1155-9d9b05fe6a12303347f64a3f8d06a79316a7fd797dd42d3bcb24675447e7cff03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2012</creationdate><topic>Axial flow</topic><topic>Blockage</topic><topic>Cooling</topic><topic>Downstream effects</topic><topic>Fan</topic><topic>Flow Phenomenon</topic><topic>LDV</topic><topic>Microphones</topic><topic>Noise</topic><topic>Three dimensional</topic><topic>Turbomachinery</topic><topic>Unsteady flow</topic><toplevel>online_resources</toplevel><creatorcontrib>TANIGUCHI, Hideo</creatorcontrib><creatorcontrib>FUNAZAKI, Ken-ichi</creatorcontrib><creatorcontrib>TAKAHASHI, Tomoe</creatorcontrib><creatorcontrib>CHIBA, Kouta</creatorcontrib><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Turbomachinery</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>TANIGUCHI, Hideo</au><au>FUNAZAKI, Ken-ichi</au><au>TAKAHASHI, Tomoe</au><au>CHIBA, Kouta</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Unsteady Flow Field and Noise Characteristics of a Small Axial Flow Fan Used in Narrow Space</atitle><jtitle>Turbomachinery</jtitle><addtitle>Turbomachinery</addtitle><date>2012-01-01</date><risdate>2012</risdate><volume>40</volume><issue>2</issue><spage>114</spage><epage>122</epage><pages>114-122</pages><issn>0385-8839</issn><eissn>1880-2338</eissn><abstract>Unsteady flow field and noise characteristics of a small axial flow fan used in narrow spaces are experimentally studied. To simulate the flow field in narrow spaces, a flat plate is placed at a certain distance downstream of the fan outlet. By varying the spacing between the plate and the fan, the blockage effect on the fan exit flow and the associated noise level is investigated. The flow field at the location of 3mm downstream of the fan casing in the axial direction is measured using a three-dimensional laser Doppler velocimetry. As for fan noise, the tested fan is installed in an anechoic room, and the noise is measured with a microphone located 100mm upstream of the fan inlet. The experimental results show that the flow field downstream of the axial flow fan and the fan noise change significantly in accordance with the spacing between the fan exit and the blockage plate.</abstract><cop>Tokyo</cop><pub>Turbomachinery Society of Japan</pub><doi>10.11458/tsj.40.114</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Turbomachinery, 2012, Vol.40(2), pp.114-122 |
| issn | 0385-8839 1880-2338 |
| language | eng ; jpn |
| recordid | cdi_proquest_miscellaneous_1793241505 |
| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; EZB-FREE-00999 freely available EZB journals |
| subjects | Axial flow Blockage Cooling Downstream effects Fan Flow Phenomenon LDV Microphones Noise Three dimensional Turbomachinery Unsteady flow |
| title | Unsteady Flow Field and Noise Characteristics of a Small Axial Flow Fan Used in Narrow Space |
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