Accession Number : ADA311141

Title :   A Two-Wave Empirical Model of the Pressure Field in a Liquid-Filled Cylindrical Shell.

Descriptive Note : Final rept.,

Corporate Author : NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV NEW LONDON CT NEW LONDON DETACHMENT

Personal Author(s) : Hull, Andrew J.

PDF Url : ADA311141

Report Date : 24 MAY 1996

Pagination or Media Count : 89

Abstract : This report develops an empirical wave propagation model of the pressure field in a liquid filled cylindrical shell. Based on the assumption that both an extensional and a breathing wave are propagating in both the positive and negative axial directions of the shell, the model contains six unknown parameters: two forced wavenumbers and tour wave propagation coefficients. The forced wavenumbers are solved for initially and then two different inverse methods are used to determine the wave propagation coefficients. The empirical model is compared to measured data taken at various locations in the shell. A method to determine the accuracy of the model and model assumptions is discussed.

Descriptors :   *INTERNAL WAVES, *LIQUID FILLED PROJECTILES, AERODYNAMIC STABILITY, WAVE PROPAGATION, CYLINDRICAL BODIES, COEFFICIENTS, PRESSURE, INVERSION.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE