摘要
从流体动力学的Ｅｕｌｅｒ方程出发，结合气体的绝热方程，讨论可压缩流体定常流动时流速与横截面之间的关系，给出亚声速流和超声速流的重要区别的物理阐释，进而讨论可压缩流体喷管出流的问题．
The relationship between flow velocity and the cross section in the steady flow of compressible fluid was discussed from Euler’s equation of fluid dynamics and the adiabatic equation of gas.A physical interpretation for the important difference between subsonic and supersonic flow is given.The problem about flow out of compressible gas from a spray tube was discussed in detail.
出处
《江苏师范大学学报（自然科学版）》
1998年第1期29-31,共3页
Journal of Jiangsu Normal University：Natural Science Edition
关键词
可压缩流体
亚声速流
超声速流
喷管
出流
compressible fluid,subsonic fluid,supersonic fluid,flow out,spray tube
