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。
This implies that the disturbance increases with distance along the axis of the swirling flow, but it does not grow with time.
这一假定意味着扰动沿涡旋流动的轴向随距离的增长而增长，但不随时间而增长。
Compared with the spacecraft instrumentation, the ground air disturbance, the unsteady aerodynamic flow on crossing event and inside tunnel impose more challenges on the head design of HSR trains.
与航空飞行器相比，高速铁路由于还要面临地面气流的扰动，两车交会时气体的震荡，以及车体通过隧道时的气流变化，因此高速列车的头型设计比飞机更具挑战性。
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