大师作文网关于飞机发动机推力的问题.
来源：学生作业帮 编辑：大师作文网作业帮 分类：英语作业 时间：2024/11/10 19:01:19
关于飞机发动机推力的问题.
我是一名新机务,有一个问题需要问：当飞机的速度增大,推力减少.这是怎么回事?我认为应该是增大啊!原句是这样的：（英文版）
When the speed of the aircraft increases,the thrust decreases,because the difference between the outlet velocity and the inlet velocity of the airflow decreases when the speed of the aircraft increases.
Another factor of the airspeed causes an opposite change on the generated thrust.
When the aircraft moves through the air,the airflow that is rammed into the engine inlets increases the airflow through the engine...
因为英语不好,小弟感激不尽.初来乍到,请多关照.
我是一名新机务,有一个问题需要问：当飞机的速度增大,推力减少.这是怎么回事?我认为应该是增大啊!原句是这样的：（英文版）
When the speed of the aircraft increases,the thrust decreases,because the difference between the outlet velocity and the inlet velocity of the airflow decreases when the speed of the aircraft increases.
Another factor of the airspeed causes an opposite change on the generated thrust.
When the aircraft moves through the air,the airflow that is rammed into the engine inlets increases the airflow through the engine...
因为英语不好,小弟感激不尽.初来乍到,请多关照.
你可以这么想象
发动机风扇转速恒定的话空气流动量恒定,前后产生压差导致推力,如果飞机速度变大的话前后压差会变小（前提转速不变）那么总推力变小
发动机风扇转速恒定的话空气流动量恒定,前后产生压差导致推力,如果飞机速度变大的话前后压差会变小（前提转速不变）那么总推力变小