飞机为啥能起飞啊 - - --流体压强
发布时间：2019-12-03 07:23:02
![](https://wkrtcs.bdimg.com/rtcs/image?w=334.67&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","r":"r_0","w":"334.67","h":"97.33","dataType":"gif","c":"word/media/image1.gif"})
本讲所有实验详见视频
![](https://wkrtcs.bdimg.com/rtcs/image?w=231.06666666667&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"231.06666666667","h":"125.26666666667","dataType":"png","c":"word/media/image2.png","imgOriW":231,"imgOriH":126})
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跑车尾部安装有气流偏导器，相当于倒置的飞机机翼。跑车行驶时，流过偏导器上方的气流速度 下方的气流速度，因此在其上下表面产生压强差，形成对气流偏导器向______的压力。
![](https://wkrtcs.bdimg.com/rtcs/image?w=271.73333333333&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"271.73333333333","h":"86.266666666667","dataType":"jpeg","c":"word/media/image10.jpeg","imgOriW":271,"imgOriH":87})
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例题：为什么地铁站台上都有一条安全线，列车行驶时严禁人们进入安全线以内的区域。
![](https://wkrtcs.bdimg.com/rtcs/image?w=201.73333333333&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"201.73333333333","h":"136.66666666667","dataType":"png","c":"word/media/image14.png","imgOriW":202,"imgOriH":136})
![](https://wkrtcs.bdimg.com/rtcs/image?w=258.73333333333&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"258.73333333333","h":"94.4","dataType":"png","c":"word/media/image15.png","imgOriW":258,"imgOriH":94})
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![](https://wkrtcs.bdimg.com/rtcs/image?w=351.46666666667&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"351.46666666667","h":"165.93333333333","dataType":"png","c":"word/media/image18.png","imgOriW":352,"imgOriH":166})
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![](https://wkrtcs.bdimg.com/rtcs/image?w=400.26666666667&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"400.26666666667","h":"126.93333333333","dataType":"png","c":"word/media/image20.png","imgOriW":401,"imgOriH":126})
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【课堂练习】
1．在行驶的汽车，打开窗门，打开下垂的窗帘布会向车内飘，还是向外飘？
2．杜甫在《茅屋为秋风所破歌》当中写道“八月秋高风怒号，卷我屋上三重茅”。大风为什么能掀翻屋顶？
![](https://wkrtcs.bdimg.com/rtcs/image?w=468.6&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"468.6","h":"203.4","dataType":"png","c":"word/media/image22.png","imgOriW":469,"imgOriH":203})
![](https://wkrtcs.bdimg.com/rtcs/image?w=507.66666666667&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"507.66666666667","h":"161.06666666667","dataType":"png","c":"word/media/image23.png","imgOriW":508,"imgOriH":161})
![](https://wkrtcs.bdimg.com/rtcs/image?w=478.4&md5sum=5a8f4c7df931a2fea421674ce5d29aa5&sign=00e78cb7ab&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=374&ipr={"t":"img","w":"478.4","h":"255.46666666667","dataType":"png","c":"word/media/image24.png","imgOriW":479,"imgOriH":255})
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