Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

Competing finite element methods exist for modeling fluid-solid interaction such as velocity Potential and displacement, (ϕf,u⃗ s) pressure and displacement, (pf,u⃗ s) , and displacement and displacement or displacement-only, (u⃗ f,u⃗ s) 1. Displacement-only finite element models for fluid-solid interaction are attractive because a model for a compressible, inviscid fluid is obtained from a model of a linear, homogeneous and isotropic (LHI) elastic solid by simply setting the elastic shear modulus, G 8, equal to zero; therefore, existing elastodynamic codes can be utilized for modeling fluids.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17A

Chapter

Chapter 4: NDE Sensors and Fields

Section

UT Sensors, Transducers and Fields

Pages

963-969

DOI

10.1007/978-1-4615-5339-7_124

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Spurious Modes in Finite Element Models for Ultrasonic Waves in Fluid-Solid Systems

La Jolla, CA

Competing finite element methods exist for modeling fluid-solid interaction such as velocity Potential and displacement, (ϕf,u⃗ s) pressure and displacement, (pf,u⃗ s) , and displacement and displacement or displacement-only, (u⃗ f,u⃗ s) 1. Displacement-only finite element models for fluid-solid interaction are attractive because a model for a compressible, inviscid fluid is obtained from a model of a linear, homogeneous and isotropic (LHI) elastic solid by simply setting the elastic shear modulus, G 8, equal to zero; therefore, existing elastodynamic codes can be utilized for modeling fluids.