Accession Number : AD0015066


Title :   THE DEAERATION OF WATER BY A SOUND BEAM


Descriptive Note : Doctoral thesis


Corporate Author : DAVID TAYLOR MODEL BASIN WASHINGTON DC


Personal Author(s) : Pode, Leonard


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/015066.pdf


Report Date : May 1953


Pagination or Media Count : 15


Abstract : A calculation is made to determine the diffusion of air into bubbles as a result of mechanical motions induced by a sound beam. The case of an isolated bubble in a weak sound beam of wave length considerably greater than the bubble radius is considered. The effects of surface tension, viscosity, and energy dissipation are neglected. The diffusion problem is treated by means of a perturbation technique. The growth of the bubble is of second order in the sound pressure (proportional to the sound intensity). The effect is shown to be sufficient to account for a significant bubble growth, especially for very small bubbles.


Descriptors :   *UNDERWATER SOUND , *DEAERATION , ENERGY , INTENSITY , MOTION , THESES , DISSIPATION , BUBBLES , PERTURBATIONS , DIFFUSION , VISCOSITY , LOW STRENGTH , SOUND PRESSURE , RADIUS(MEASURE) , SURFACE TENSION , AIR , FREQUENCY , MECHANICAL PROPERTIES


Subject Categories : Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE