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江門水冷(leng)空調好用嗎?
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導致江門風機失速的(de)原因
風機(ji)的失速從流(liu)(liu)體力(li)(li)學(xue)得知,當(dang)氣(qi)流(liu)(liu)順著機(ji)翼葉(xie)片(pian)(pian)(pian)活動(dong)時(shi),作用(yong)于葉(xie)片(pian)(pian)(pian)上(shang)有兩種力(li)(li),即(ji)垂(chui)直于葉(xie)片(pian)(pian)(pian)的升力(li)(li)與(yu)平行于葉(xie)片(pian)(pian)(pian)的阻力(li)(li),當(dang)氣(qi)流(liu)(liu)全部貼(tie)著葉(xie)片(pian)(pian)(pian)呈(cheng)線型(xing)活動(dong)時(shi),這種升力(li)(li)大于阻力(li)(li)。當(dang)氣(qi)流(liu)(liu)與(yu)葉(xie)片(pian)(pian)(pian)進口構成(cheng)正沖(chong)角(jiao),此正沖(chong)角(jiao)達到(dao)某一臨(lin)界(jie)值時(shi),葉(xie)片(pian)(pian)(pian)反(fan)面(mian)活動(dong)工況(kuang)開始惡化(hua),沖(chong)角(jiao)超過(guo)臨(lin)界(jie)值時(shi),邊界(jie)層受到(dao)破壞,在葉(xie)片(pian)(pian)(pian)反(fan)面(mian)尾端(duan)呈(cheng)