The PGS method is to scale up themagnitudes of the pressure fluctuations in far subsonic flows and thereby increasecomputational efficiency without change other flow features of interest.

• 在压力迭代求解过程中运用了放大压力梯度法，在不改变其它流体状态参数的前提下，通过放大低马赫数流动中的压力波动大小来提高计算效率。