摘要
Based on Qian's theory,we investigated the reflection and refraction of finite amplitute sound wave on a plane boundary.Under the continuity conditions of the pressure and the normal velocity,some interesting results are obtained.There exists two kinds of refraction waves.One obeys Snell's law;the other quantitatively agrees to the steeply dipping wave observed by Muir et al.A further analysis shows that a double refraction may occur in an extent of the incident angle when ρ1/ρ2>√C_(02)^(2)/C_(01)^(2)-1.
基金
supported by NSFC.
