www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Global EditionASIA 中文雙語Fran?ais
China
Home / China / Innovation

China builds world's fastest wind tunnel to spur spaceplane development

Xinhua | Updated: 2018-03-20 00:34
Share
Share - WeChat

BEIJING - China is building the world's fastest hypersonic wind tunnel to help with the development of spaceplanes.

"The 265-meter-long tunnel can be used to test hypersonic aircraft that can travel at speeds of up to Mach 25 (30, 625 kph), 25 times the speed of sound," Han Guilai, a researcher with China's State Key Laboratory of High Temperature Gas Dynamics of the Chinese Academy of Sciences (CAS), told China Central Television over the weekend.

Han said the current wind tunnel could simulate flights ranging from Mach 5 to 9. Researchers from CAS in Beijing have successfully tested one hypersonic plane in a wind tunnel at such speeds.

The research was published in the journal "Science China: Physics, Mechanics & Astronomy" in February. It unveiled the "I Plane" model, which is capable of transporting people and payloads from Beijing to New York within two hours, beating any commercial airline flight.

Wind tunnels move air around objects, making it seem like the objects are really flying. Spacecraft engineers use them to test ideas for various spacecraft designs. Long after the design work is finished, wind tunnels help make spacecrafts better and safer.

The new tunnel will help China to take the lead on wind tunnel building, though competition from other countries is still fierce, according to Han.

"The new tunnel will aid the engineering application of hypersonic technology by duplicating the environment of extreme hypersonic flights. Once issues are discovered during these ground tests, they will be ironed out before test flights begin," Han said.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 国产成人a毛片 | 色拍拍噜噜噜aⅴ在线观看 色青青草原桃花久久综合 色婷婷91 | 亚洲午夜一区二区三区 | 久久怡红院 | a黄毛片 | 成人久久久观看免费毛片 | 国产高中生粉嫩无套第一次 | 亚洲欧美日韩天堂 | 国产三级精品91三级在专区 | 免费一级美国片在线观看 | 国产亚洲精品一区二区在线播放 | 欧美最新的精品videoss | 性欧美另类老妇高清 | 四色6677最新永久网站 | fc2久久 | 日本一区二区三区不卡在线视频 | 精品中文字幕在线 | 免费国产高清视频 | 中文一区二区在线观看 | 午夜性刺激免费视频 | 一区二区三区久久精品 | 亚洲性视频在线 | 亚洲网站黄色 | 97在线视频免费观看费观看 | 操碰91| 色偷偷亚洲第一成人综合网址 | 毛片视频网站在线观看 | 夜间福利在线观看 | 2022免费国产精品福利在线 | 国产免费一区二区三区在线 | 一级做a爰性色毛片免费 | 久久青草视频 | 国产精品亚洲高清一区二区 | 国产精品久久久久久久y | 成人久久影院 | 日本一道免费一区二区三区 | 精品三级国产一区二区三区四区 | 91久久香蕉 | 一区二区国产在线观看 | 国内成人自拍视频 | 国内精品久久久久久影院老狼 |