{"id":58,"date":"2019-04-18T14:51:32","date_gmt":"2019-04-18T05:51:32","guid":{"rendered":"http:\/\/fel.ne.jp\/english\/?page_id=58"},"modified":"2025-08-29T16:05:58","modified_gmt":"2025-08-29T07:05:58","slug":"low_noise","status":"publish","type":"page","link":"https:\/\/fel.ne.jp\/english\/guide\/facilities\/low_noise\/","title":{"rendered":"Low noise wind tunnel"},"content":{"rendered":"\t\t
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Low noise wind tunnel<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Feature<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Wind tunnels are devices for conducting fluid experiments in artificially generated winds. The low noise wind tunnel is designed in various ways so that fluid experiments can be performed while keeping the measurement unit in a quiet environment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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High performance<\/td>\nEnables low noise and low turbulence airflow performance<\/td>\n<\/tr>\n
Multifunctional<\/td>\nWe have two measurement units and can handle various tests<\/td>\n<\/tr>\n
Energy saving type<\/td>\nIt is energy recovery method by circulation type air course<\/td>\n<\/tr>\n
Space saving type<\/td>\nOptimal design and miniaturization of each part of the wind tunnel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Performance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u00a0<\/td>\u2464.\u7b2c1\u6e2c\u5b9a\u90e8<\/td>\u2467.\u7b2c2\u6e2c\u5b9a\u90e8<\/td><\/tr>
Size<\/td>B 2m \u00d7 H 2m \u00d7 L 5m<\/td>B 3.2m \u00d7 H 3.5m \u00d7 L 7m<\/td><\/tr>
Format<\/td>Open type<\/td>Sealed method<\/td><\/tr>
Maximum wind speed<\/td>60 m\/s<\/td>30m\/s\uff08When using flow path blocks\uff09<\/td><\/tr>
Wind speed distribution<\/td>\u00b11%\u4ee5\u4e0b\uff0840m\/s\u6642\uff09<\/td>\u00b15%\u4ee5\u4e0b\uff0830m\/s\u6642\uff09<\/td><\/tr>
Disorder<\/td>0.5%\u4ee5\u4e0b\uff0840m\/s\u6642\uff09<\/td>3%\u4ee5\u4e0b<\/td><\/tr>
Noise<\/td>65dB\uff08A\uff09\u4ee5\u4e0b\uff0840m\/s\u6642\uff09<\/td>\u00a0<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\u2460\uff0eBlower<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u2461\uff0eSound absorption concrete<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\tThe inner wall of the air passage is covered with porous concrete panel. The sound waves are attenuated in the small holes and the noise is reduced.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\u2462\uff0eGuide vane<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\tIn addition to reducing pressure loss at the corners, it also has a rectifying effect.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\u2463\uff0eRectification unit<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\tIt consists of a honeycomb and a plurality of rectifying nets. The speed of the wind is equalized and the degree of turbulence is also reduced.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\u2464\uff0eFirst measurement unit<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\tAll walls, ceilings and floors are covered with wedge-shaped sound absorbing material.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\u2465\uff0eSilencer<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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It absorbs sound while passing through the wind.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\u2466\uff0eGuide vane with sound absorbing material<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u2467\uff0eSecond measurement unit<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\tExperiments with large aircraft models are conducted here.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\u2468\uff0eMeasurement room<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Click here for product catalog<\/a><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Low noise wind tunnel Feature Wind tunnels are devices for conducting fluid experiments in artificially genera […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":30,"menu_order":3424,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"sns_share_botton_hide":"","vkExUnit_sns_title":"","_vk_print_noindex":"","sitemap_hide":"","vkExUnit_sitemap":"","_veu_custom_css":"","_exclude_from_list_pages":"","vkexunit_cta_each_option":"","vkExUnit_childPageIndex":"","vkExUnit_pageList_ancestor":"","vkExUnit_contact_enable":"","footnotes":""},"class_list":["post-58","page","type-page","status-publish","hentry"],"aioseo_notices":[],"veu_head_title_object":{"title":"","add_site_title":""},"_links":{"self":[{"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/pages\/58","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/comments?post=58"}],"version-history":[{"count":29,"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/pages\/58\/revisions"}],"predecessor-version":[{"id":3832,"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/pages\/58\/revisions\/3832"}],"up":[{"embeddable":true,"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/pages\/30"}],"wp:attachment":[{"href":"https:\/\/fel.ne.jp\/english\/wp-json\/wp\/v2\/media?parent=58"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}