Continuum description of rarefied gas dynamics. II. The propagation of ultrasound

Xinzhong Chen; Hongling Rao; Edward A. Spiegel

doi:10.1103/PhysRevE.64.046309

Continuum description of rarefied gas dynamics. II. The propagation of ultrasound

Xinzhong Chen, Hongling Rao, and Edward A. Spiegel

Phys. Rev. E 64, 046309 – Published 26 September 2001

Abstract

The equations of fluid dynamics developed in Paper I [X. Chen, H. Rao, and E. A. Spiegel, Phys. Rev. E 64, 46308 (2001)] are applied to the study of the propagation of ultrasound waves. There is good agreement between the predicted propagation speed and experimental results for a wide range of Knudsen numbers.