论文标题
使用选择性频率阻尼方法的不稳定弯曲流量的数学建模
Mathematical modelling of an unstable bent flow using the selective frequency damping method
论文作者
论文摘要
选择性频率阻尼方法被应用于弯曲流。该方法用于自适应公式。最危险的频率是通过解决特征值问题来确定的。已经发现，稳态或脉动的一种模式可能存在于某个相对较高的雷诺数。由于稳态流动的不稳定，周期性流量发生。这种数值方法易于使用，但需要大量时间进行计算。
The selective frequency damping method was applied to a bent flow. The method was used in an adaptive formulation. The most dangerous frequency was determined by solving an eigenvalue problem. It was found that one of the patterns, steady-state or pulsating, may exist at some relatively high Reynolds numbers. The periodic flow occurs due to the instability of the steady-state flow. This numerical method is easy to use but requires a great deal of time for calculations.
