Discussion on the sonic velocity for high-speed aerated water flow;

Experiments were carried out to investigate the sonic velocity of air-powder two-phase flow in a horizontal constant cross section duct.

On the basis of a two-phase flow sonic velocity a gas-solid two-phase flow shock-wave model was set up,and calculations and analyses were performed.

Experimental research on difluoroethane′s sound velocity and ideal-gas heat capacity;

Comparison with vapor- liquid two-phase medium shows that phase change could not be considered while calculating sound velocity.

Twenty-eight speed-of-sound values in gaseous propane were measured using a spherical resonator for pressure from 200 kPa to 700 kPa along with four isotherms at 293.

A set of acoustic measurement apparatus of the speed-of-sound in gases with a spherical resonator has been designed and manufactured with high precision.