{"id":5996,"date":"2022-12-10T06:30:51","date_gmt":"2022-12-10T01:00:51","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=5996"},"modified":"2025-03-27T12:09:03","modified_gmt":"2025-03-27T06:39:03","slug":"what-is-a-trisonic-wind-tunnel","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-is-a-trisonic-wind-tunnel\/","title":{"rendered":"What is a Trisonic Wind Tunnel?"},"content":{"rendered":"<h2><strong>About Trisonic wind tunnel:<\/strong><\/h2>\n<ul>\n<li>The massive structure, which can perform tests in three speed regimes, equips the Indian Space Research Organisation (ISRO) with a robust in-house support system for space missions.<\/li>\n<li>Trisonic Wind Tunnel is a system to aid aerodynamic design of rockets and re-entry spacecrafts by characterising a scaled model by evaluating forces, moments, load distribution, unsteady pressures, acoustic levels etc.<\/li>\n<li>The tunnel has an overall length of about 160m and has a maximum cross section of 5.4m.<\/li>\n<li>The tunnel can be used for testing various space vehicles in three flight regimes \u2014\n<ul>\n<li><strong>below the speed of sound (subsonic),<\/strong><\/li>\n<li><strong>at the speed of sound (transonic) and<\/strong><\/li>\n<li><strong>above the speed of sound (supersonic),<\/strong><\/li>\n<\/ul>\n<\/li>\n<li>hence the <strong>name trisonic wind tunnel<\/strong><\/li>\n<li>The tunnel can <strong>simulate flight conditions from 0.2 times the speed of sound (68 m\/s) to 4 times the speed of sound (1360 m\/s).<\/strong><\/li>\n<li>Its parts include air storage vessels, a settling chamber where the airflow is \u2018smoothened\u2019 out, and nozzles for releasing the air into the test section.<\/li>\n<li><strong>Implementation:<\/strong> The trisonic wind tunnel was implemented through M\/s Tata Projects India Ltd with the assistance of industries across the country.<\/li>\n<li>For years, ISRO had depended on the trisonic wind tunnel at the National Aerospace Laboratory (NAL), Bengaluru.<\/li>\n<li><strong>Hypersonic wind tunnel:<\/strong>\n<ul>\n<li>The VSSC is already equipped with a hypersonic wind tunnel for testing parameters of re-entry missions.<\/li>\n<li>Commissioned in 2017, this tunnel can simulate flow speeds up to Mach 12.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3><strong>Q1)\u00a0<\/strong><strong>Where is the world&#8217;s 3rd largest hypersonic wind tunnel located?<\/strong><\/h3>\n<p>ISRO commissioned a one-metre hypersonic wind tunnel and shock tunnel, the world&#8217;s third largest such facility, at the <strong>Vikram Sarabhai Space Centre in Thiruvananthapuram<\/strong>.<\/p>\n<p><strong>Source:\u00a0<\/strong><a href=\"https:\/\/www.thehindu.com\/news\/national\/kerala\/vikram-sarabhai-space-centre-gets-a-new-trisonic-wind-tunnel\/article66242037.ece\" target=\"_blank\" rel=\"nofollow noopener\">The Hindu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trisonic Wind Tunnel is a system that equips ISRO with robust in-house support for space missions.<\/p>\n","protected":false},"author":5,"featured_media":5997,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-5996","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/5996","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=5996"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/5996\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/5997"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=5996"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=5996"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=5996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}