Hypersonic wind tunnel

Japanese: 極超音速風胴 - きょくちょうおんそくふうどう
Hypersonic wind tunnel


[kinds]
Wind tunnels are classified into various categories based on their structure, performance, and purpose. First, they are classified according to the Mach number (the speed of the airflow divided by the speed of sound in that gas) M into low-speed wind tunnels ( M 0.5 or less), high-speed subsonic wind tunnels ( M 0.5-0.8), transonic wind tunnels ( M 0.8-1.2), supersonic wind tunnels ( M 1.2-5), and hypersonic wind tunnels ( M 5 or more). In low-speed wind tunnels and high-speed subsonic wind tunnels, the airflow is created by continuously operating a blower, but in wind tunnels for supersonic speeds and above, the airflow is often created by releasing pressurized air filled in an air tank. …

From [Wind Tunnel]


[kinds]
Wind tunnels are classified into various categories based on their structure, performance, and purpose. First, they are classified according to the Mach number (the speed of the airflow divided by the speed of sound in that gas) M into low-speed wind tunnels ( M 0.5 or less), high-speed subsonic wind tunnels ( M 0.5-0.8), transonic wind tunnels ( M 0.8-1.2), supersonic wind tunnels ( M 1.2-5), and hypersonic wind tunnels ( M 5 or more). In low-speed wind tunnels and high-speed subsonic wind tunnels, the airflow is created by continuously operating a blower, but in wind tunnels for supersonic speeds and above, the airflow is often created by releasing pressurized air filled in an air tank. …

*Some of the terminology used to refer to "hypersonic wind tunnels" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[種類]
 風胴は構造,性能,用途などの面からいろいろに分類される。まず,気流のマッハ数(気流の速度をその気体の音速で割った値)Mによって,低速風胴(M0.5以下),高速亜音速風胴(M0.5~0.8),遷音速風胴(M0.8~1.2),超音速風胴(M1.2~5),極超音速風胴(M5以上)に分けられる。低速風胴や高速亜音速風胴では送風機を連続的に運転して気流をつくるが,超音速以上の風胴では貯気槽に充てんした高圧空気を放出して気流をつくるものが多い。…

【風胴】より


[種類]
 風胴は構造,性能,用途などの面からいろいろに分類される。まず,気流のマッハ数(気流の速度をその気体の音速で割った値)Mによって,低速風胴(M0.5以下),高速亜音速風胴(M0.5~0.8),遷音速風胴(M0.8~1.2),超音速風胴(M1.2~5),極超音速風胴(M5以上)に分けられる。低速風胴や高速亜音速風胴では送風機を連続的に運転して気流をつくるが,超音速以上の風胴では貯気槽に充てんした高圧空気を放出して気流をつくるものが多い。…

※「極超音速風胴」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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