由于取消了“扰动胀量为零”的假设，需要耦合求解扰动质量方程、扰动涡量输运方程和扰动能量输运方程。
Since the disturbance expansion has been taken into account, one has to solve the mass, vorticity transport and energy transport equations for disturbance motion in a coupled way.
利用在一个机翼翼梢安装的翼梢小翼形成受扰动旋涡，在风洞和水洞中对受扰动涡的自组织过程进行了测量。
The self-organization of vortices disturbed by different taps are measured both in wind tunnel by PIV and in water tunnel by LDV.
数值模拟结果表明，在引入了扰动胀量后，用扰动涡方法模拟动静干涉仍保持较好的收敛性和收敛速度，且与试验的符合程度更好。
From the simulation results it can seen that the disturbance vortex method still converges fast even the disturbance expansion is taken into consideration.
研究表明波状界面和涡街是由界面处的剪力流速度分布和周期性扰动所造成的。
The results show that the wavy interface and vortex street are caused by the velocity distribution of shear flow and periodic disturbance at the interface.
高空具有高湿位势涡度值的干冷空气叠加在低层扰动上，有利于不稳定层结的加强和降水发生。
The upper level dry and cold air with high moist potential vorticity value was superposed to the low-level disturbance, which was advantageous to instability stratification strength and precipitation.
当近地面出现负的位涡扰动时，降水随之也减弱。
When near ground arises negative potential vorticity disturbance, precipitation also weaken.
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.
以势流理论为基础，本文用不可压流涡段所产生的扰动流场的线性叠加，计算涡分离流动的流场。
Based on the potential theory, a linearity combination of the disturbance flow field generated by the uncompressible vortex part was applied in the computation of separate vortex flow.
以势流理论为基础，本文用不可压流涡段所产生的扰动流场的线性叠加，计算涡分离流动的流场。
Based on the potential theory, a linearity combination of the disturbance flow field generated by the uncompressible vortex part was applied in the computation of separate vortex flow.
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