在理想气体假设下给出了扰动流运动微分方程组的解析解；
On the assumption that the media is an ideal fluid, the analytic solution for differential equations of disturbing flow is obtained.
接下主要内容介绍了准一维流动，接著讨论扰动流与非稳态流。
The next large block of lectures covers quasi-one-dimensional flow, followed by a discussion of disturbances and unsteady flows.
本文计算了各种条件下绕圆柱的阻力系数、流函数涡量分布以及扰动流函数等。
The drag coefficient, the stream function and vorticity, the perturbed stream function are calculated under various conditions.
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