【摘要】 流体力学的守恒方程组,有一种小扰动近似处理方法,可以写成协变不变的形式,并且可以写出广义相对论线元。误差量级不大于现有对相对论效应验证试验的精度。所以可压缩流动也具有回路声干涉条纹不随风速变化而变化的效应,本文从数值模拟实验和实际的声干涉实验两方面证明此现象确实是存在的。更多还原

【Abstract】 An approximate small disturbance method for the conservative equation of fluid mechanics can be written in the form of covariant invariability.And the metric invariant of extensional relativity in compressible fluid mechanics can also be given.The magnitude of error is not greater than the error of experiment for verification of relativity effect.Therefore,in compressible fluid there exists the phenomenon where the stripe of loop sound interference is invariant to the speed of wind.Numerical simulation and sound interference experiment all demonstrate that such a phenomenon does exist.更多还原