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运用HPM-Padé(同伦摄动-帕德逼近)法导出了当喷注流体速度与距平板前缘距离的平方根成反比时,不可压缩常物性流体外掠平板层流边界层内无量纲速度和无量纲温度解析表达式,无量纲流函数1阶导数的HPM-Padé解析解与4阶龙格库塔法的数值解结果一致.利用HPM-Padé解析解研究了喷注系数和流体Prandtl数对速度和温度分布的影响.结果表明:Prandtl数越大,温度边界层越薄,壁面温度梯度越大;...
NASA's Shuttle Atlantis Moves to Launch Pad, Liftoff Practice Set
NASA's Shuttle Atlantis Pad, Liftoff Practice Set
2010/4/16
Journalists are invited to cover the STS-132 space shuttle crew's Terminal Countdown Demonstration Test, a practice countdown and related training, April 20-23 at NASA's Kennedy Space Center in Florid...
NASA's Space Shuttle Discovery Rolls to Launch Pad; Liftoff Practice Set
NASA's Space Shuttle Discovery Pad Liftoff Practice Set
2010/2/23
Journalists are invited to cover the STS-131 space shuttle crew's practice countdown and related training March 2-5 at NASA's Kennedy Space Center in Florida. Reporters also may cover space shuttle Di...
NASA Shuttle at Launch Pad for Final Scheduled Night Launch; Crew Set to Arrive for Practice Liftoff
NASA Shuttle Final Scheduled Night Launch Practice Liftoff
2010/1/6
After reaching its launch pad at NASA's Kennedy Space Center in Florida Wednesday, space shuttle Endeavour now awaits its next major milestone for the upcoming STS-130 mission. Reporters are invited t...
NASA's Shuttle Program Hands Over Launch Pad to Constellation
NASA Shuttle Program Launch Pad Constellation
2009/6/1
The May 31 transfer of Launch Pad 39B at NASA's Kennedy Space Center in Florida from the Space Shuttle Program to the Constellation Program is the next step in preparing the first flight test of the a...