叶尖速度
- 网络tip speed
叶尖速度-
提高单级压比的重要途径之一，就是提高动叶的叶尖速度，这同时就会造成叶尖的超音速。
It is a very important approach to increase the tip velocity of rotor for the high pressure ratio .
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本方法是基于对FW-H方程的准确求解，并限制螺旋桨叶尖相对速度为亚音速。
The blade tip speed is limited to subsonic . The formulation is based on the FW-H equation .
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透平机械中的叶片长度和叶尖线速度都不断提高。
The length and speed of blade became longer and faster accordingly .
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因此低叶尖切线速度是将来大涵道比风扇的发展趋势。
Therefore , the low tip tangential speed design of high bypass ratio is a trend .
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发动机噪音很大部分是由于风扇造成的，而风扇的噪声又与叶尖切线速度的4次方成正比。
As the engine noise is caused largely due to the fan , and fan noise is proportional to the 4th power of the blade tip tangential velocity .