Modelling Of Nonlinear Dilatation Response Of Fluids Containing Columns - Plastic And Shear Relaxation Considered

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Report Number: WL-TR-91-3078 Volume II, pages GAC-1 to GAC-9
Author(s): Wendlandt, Bernd
Corporate Author(s): Department of Defence, Materials Research Laboratory
Laboratory: Wright Laboratory
Date of Publication: 1991-08
Pages: 9
DoD Project: 2401
DoD Task: 240104
Identifier: This paper is part of a conference proceedings. See ADA241312

Abstract:
The non-linear wave equation governing the propagation and scatter of dilatation waves in discontinuous media is presented and its Eulerian numerical analogue is used to study scatter of acoustic dilatation waves by columns and ducts in elastic and visco-elastic fluids. Plastic and viscoelastic relaxation mechanisms are considered. The spectral form of the wave equation is developed and used to discuss dispersion. Selected applications of the numerical analogue to simulation of scatter, propagation and echo attenuation are presented.

Provenance: University of Colorado Colorado Springs, Kraemer Family Library

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