"a sound wave causes periodic rarefactions in its medium"
例句
用作名词(n.)
Simulation results show that rarefaction effect plays an important role in gas damping, which decreases as Kn Number increases.数值模拟结果表明，稀薄效应对气体阻尼的影响较大，随着克努森数的不断增大，气体阻尼逐渐减小。
Several applications require consideration of rarefaction, which motivates the present thesis to focus on simulation of driven cavity flows in this region.因此本文的动机是模拟空穴流场在稀薄区域上的应用。
