The act or an instance of wobbling; unsteady motion.
前后摇晃摇摆不定的动作或实例；
The unsteady motion of a two-dimensional thick airfoil at high angles of attack is considered in this paper.
本文研究二维厚度翼型的大攻角非定常运动。
The pressure gradient and the additional body force due to unsteady motion have been considered in the equations.
方程中考虑了压力梯度及非匀速运动引起的附加质量力。
Calculation results show that the unsteady motion has pronounced influences on the hydrodynamic characteristics of the lifting surface, a phenomenon deserving due consideration in applied engineering.
计算结果表明，运动的非定常性对升力面的流体动力特性具有显著的影响，工程应用中对此需要加以考虑。
The results show that unsteady aerodynamic characteristics of a delta wing oscillating in large amplitude pitching roll motion are more complicated than in pitching motion or in roll motion.
结果表明，飞行器俯仰滚转耦合运动时的气动特性比单独俯仰和滚转时的气动特性复杂得多。
The problem of unsteady separated flow of rapidly pitching airfoil with oscillating motion is computationally studied.
对带振荡的快速上仰翼型的非定常分离流问题进行了计算研究。
Using the model the unsteady aerodynamics of one aircraft in pitching-rolling motion is identified.
应用该模型对某飞机模型做俯仰滚转耦合运动的非定常气动力进行了辨识。
A 2-d numerical model of wave motion in lock approach channel is described, which is soluted by using the method of resultants of 2-d numerical model of unsteady flow and 1-d numerical model.
提出船闸引航道内水面波动的二维数学模型，采用二维非恒定流数学模型和船闸灌泄水一维数学模型联解。
A 2-d numerical model of wave motion in lock approach channel is described, which is soluted by using the method of resultants of 2-d numerical model of unsteady flow and 1-d numerical model.
提出船闸引航道内水面波动的二维数学模型，采用二维非恒定流数学模型和船闸灌泄水一维数学模型联解。
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