Accession Number : AD0448054


Title :   A NUMERICAL SOLUTION FOR SOUND VELOCITY AND ABSORPTION IN CYLINDRICAL TUBES,


Corporate Author : MISSISSIPPI UNIV UNIVERSITY


Personal Author(s) : Shields, F. D. ; Lee, K. P. ; Wiley, W. J.


Report Date : 22 SEP 1964


Pagination or Media Count : 13


Abstract : A numerical solution of the Kirchhoff equation for the propagation constant of longitudinal sound waves in infinitely long cylindrical tubes has been obtained. The solution, which avoids the wide tube approximations, shows that the percentage errors in the Helmholtz-Kirchhoff tubevelocity correction and tube-absorption are both roughly equal to the percentage the velocity correction is of the free-space velocity. (Author)


Descriptors :   , (*SOUND, PROPAGATION), (*PROPAGATION, CYLINDRICAL BODIES), NUMERICAL ANALYSIS, BESSEL FUNCTIONS, ERRORS, EXPERIMENTAL DATA, VELOCITY, SPECIFIC HEAT, THERMAL CONDUCTIVITY, CORRECTIONS.


Distribution Statement : APPROVED FOR PUBLIC RELEASE