Theoretical andComputationalAcoustics'99(with CD-Rom)

Proceedings of the 4th ICTCA Conference

Stazione Marittima, Trieste, Italy

1 0 - 1 4 May 1999

Hosted by Istituto Nazionale di Oceanografia e diGeofisica Sperimentale, Italy

Editors

Geza SerianiIstituto Nazionale di Oceanografia e diGeofisica Sperimentale, Italy

Ding Lee r -Yale University USA f , r .

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World ScientificN E W J E R S E Y • L O N D O N • S I N G A P O R E • S H A N G H A I • H O N G K O N G • T A I P E I • C H E N N A I

VII

CONTENTS

Preface v

Wave Propagation Theory

Uniformly Asymptotic Solutions for PseudodifferentialEquations with Singular Integral Operators 3

A. Hanyga and M. Seredynska

The Kirchhoff-Helmholtz Integral Pair 4M. Tygel, J. Schleicher, L. T. Santos, and P. Hubral

Analysis and Processing of Received Signals in Boreholes 5J. M. Hovem, H. Dong, and O. Lotsberg

Informational Capacity of Acoustic Measurements 6E. Lichman

Resonances of Acoustic Waves Interacting with an ElasticSeabed 7

M. S. Fokina and V. N. Fokin

Modeled Velocity and Reflectivity Properties of AnisotropicHydrated Sediments 8

M. Jakobsen, T. A. Johansen, and B. 0. Ruud

Reflection/Transmission Coefficients at a Plane Interfacein Dissipative and Nondissipative Isotropic Media:A Comparison 9

J. Brokesovd

Analysis of the Reflection and Transmission Coefficients inThree-Phase Sandstone Reservoirs 10

C. L. Ravazzoli

Fractional Diffusive Waves 11F. Mainardi and P. Paradisi

V I I I

Acoustic Excitation of Scholte-Stoneley and Lamb Waves on aReinforced Cylindrical Shell 12

O. Poncelet, A. Gerard, M. Deschamps, A. Guran,B. Belinskiy, J. Dauer, and H. Uberall

On the Adiabaticity of Acoustic Propagation Through NongradualOcean Structures 13

E. C. Shang, Y. Y. Wang, and T. F. Gao

Ferromagnets and Kelvin's Medium: Basic Equations and WaveProcesses 14

E. F. Grekova

Propagation of Ultrasonic Waves in Nonlinear Multilayered Media 15V. Chiroiu, C. Chiroiu, C. Rugina, P. P. Delsanto, andM. Scalerandi

Optimal Model for the Diffraction Effect in the Ultrasonic Fieldof Piston Transducers 16

A. B. Temsamani, S. Vandenplas, and L. Van Biesen

Oblique Acoustic Axes in Trigonal Crystals 17V. G. Mozhaev, F. Bosia, and M. Weihnacht

Acoustic Time Series Variability and Time Reversal MirrorDefocusing Due to Cumulative Effects of Water ColumnVariability 18

K. D. Lepage

Numerical and Experimental Time-Reversal of Acoustic Wavesin Random Media 19

A. Derode, M. Tanter, A. Tourin, L. Sandrin, andM. Fink

Fluctuations of Elastic Waves Due to Random Scattering fromInclusions 20

V. A. Korneev and L. R. Johnson

Numerical Study of the Wave Instability Problem with the Effectof the Transverse Velocity Component 21

B. S. Attili

IX

Sound Propagation, Vibrations and Noise

Airborne Acoustics of Explosive Volcanic Eruptions 25M. J. Buckingham and M. A. Garces

Sound Generation of Interacting Perturbed Vortex Rings 26C. C. K. Tang, N. W. M. Ko, and R. C. K. Leung

A Wide-Angle Parabolic Equation for Acoustic Waves inInhomogeneous Moving Media: Applications to AtmosphericSound Propagation 27

L. Dallois, P. Blanc-Benon, and D. Juve

Acoustics of Kinematically Complex Shear Flows 28A. Rogava, S. Poedts, and S. Mahajan

Ultrasound Propagation Through a Rotational Flow: NumericalMethods Compared to Experiments 29

S. Manneville, C. Prada, M. Tanter, M. Fink, and J.-F. Pinion

Wave Propagation on an Elastic Beam Traveling in a Tube: LinearTheory of Aerodynamic Loading 30

N. Sugimoto and K. Kugo

On the Vibration of Membrane Partially Protruding Above theSurface of Liquid 31

G. V. Filippenko and D. P. Kouzov

Vibrational Analysis of Ships with Coupled Finite and BoundaryElements 32

C. Cabos and F. Ihlenburg

Transverse Resonant Oscillations in Acoustic Ducts 33P. Vainshtein

Noise Shielding by Simple Barriers: Comparison Between thePerformance of Spherical and Line Sound Sources 34

D. Ouis

Wave Propagation Through Hollow Bodies and Noise Reduction 35S. Germes, C. Stawicki, and D. Aubry

Generation of Ground Elastic Waves by Road Vehicles 36V. V. Krylov

Underwater Acoustics

Broadband Matched-Field Localization Performance in UncertainEnvironments Using a Short Array 39

B. F. Harrison

A Frequency Domain Inversion Method Applied to ObliqueReflected Signals from a Water-Sediment Interface 40

5. Vandenplas, A. B. Temsamani, Z. Cisneros, andL. Van Biesen

Application of a Three-Dimensional Two-Way Parabolic EquationModel for Reconstructing Images of Underwater Targets 41

D. Zhu

Determination of a Buried Object in a Two-Layered Shallow Ocean 42R. P. Gilbert, M. Werby, and Y. Xu

New Schemes of Ocean Acoustic Tomography 43E. C. Shang, A. G. Voronovich, Y. Y. Wang, K. Naugolnykh,and L. Ostrovsky

Numerical Simulation of Transverse Current Monitoring in thePram Strait 44

K. A. Naugolnykh, Y.-Y. Wang, and E. C. Shang

Prospects for Medium-Scale Diffraction Tomography on the Shelf 45/. P. Smirnov, A. I. Khilko, and J. W. Caruthers

Engineering Seismology

Applications of the Modal Summation Technique to theTheoretical Site Response Estimation 49

F. Romanelli, F. Vaccari, and G. F. Panza

Earthquake Ground Motion Simulation Through the 2-D SpectralElement Method 50

E. Priolo

The Variational Indirect Boundary Element Method:A Strategy Toward the Solution of Very Large Problems of SiteResponse 51

F. J. Sanchez-Sesma, R. Vai, and E. Dretta

Efficiency and Optimization of the 3-D Finite-DifferenceModeling of Seismic Ground Motion 52

, P. Moczo, J. Kristek, and E. Bystricky

Three-Dimensional Ground Motion Simulations for LargeEarthquakes on the San Andreas Fault with Dynamic andObservational Constraints 53

K. B. Olsen

Modifications of the Ground Motion in Dense Urban Areas 54D. Clouteau and D. Aubry

Numerical Simulations of Strong Ground Motion DuringDestructive Earthquakes in Hokkaido, Japan 55

M. Furumura and T. Furumura

Application of the Integral Laguerre Transforms forForward Seismic Modeling 56

G. V. Konyukh, B. G. Mikhailenko, andA. A. Mikhailov

Parallel 3D Fourier Spectral Simulation of Strong GroundMotion in Osaka Basin During the 1995 Kobe Earthquake 57

T. Furumura

Ultrasonic Field Synthesis and Modelling

Guest Editor: M. Pappalardo

Speed-Accuracy Trade-Offs in Computing Spatial ImpulseResponses for Simulating Medical Ultrasound Imaging 61

J. A. Jensen

Mechanism of Acoustic Wave Propagation: A Real Role ofVirtual Sources 62

H. Lasota

XII

Synthesis of Unequally Spaced Arrays with Asymmetric BeamPatterns 63

A. Trucco and V. Murino

Real-Time Deconvolution in Ultrasonic Imaging Systems 64G. Cincotti, R. Carotenuto, G. Cardone, P. Gori, andM. Pappalardo

Time Reversal in Acoustics 65M. Fink

Computation of the Ultrasonic Field Radiated bySegmented-Annular Arrays 66

O. Martinez, L. G. Ullate, and F. Montero

Numerical Techniques for Modeling Doppler UltrasoundSpectra Systems 67

M. G. Ruano

Influence of the Inter-Element Coupling on Ultrasound ArrayRadiation Patterns 68

P. Gori, A. Iula, M. Pappalardo, N. Lamberti, andF. M. De Espinosa

Computational Methods

A Direct Discrete Formulation for the Wave Equation 71E. Tonti

An Hexahedral Face Element Method for the DisplacementFormulation of Structural Acoustics Problems 72

A. Bermudez, P. Gamallo, and R. Rodriguez

A Comparison of Numerical Methods for Active Sonar Array IPerformance 73 I

S. Morgan, D. J. W. Hardie, and P. C. Macey \

On the Efficient Implementation of the Integral Equation ;Method in Elastodynamics 74 \

E. V. Glushkov and N. V. Glushkova

XIII

A Generalized Mode Matching Method for Scattering Problemswith Unbounded Obstacles 75

A.-S. Bonnet-Bendhia and A. Tillequin

AILU for Helmholtz Problems: A New Preconditioner Based onthe Analytic Parabolic Factorization 76

M. J. Gander and F. Nataf

Application of a Domain Decomposition Method with LagrangeMultipliers to Acoustic Problems Arising from the AutomotiveIndustry 77

F. Magoules, K. Meerbergenm and J.-P. Coyette

Visualization of the Energy Flow in and Around a Fluid LoadedElastic Sphere 78

C. E. Dean and J. P. Braselton

Noise Prediction Based on the Spectral Method for Solving aDissipative Boundary Value Problem in Acoustics and ItsNumerical Realization 79

E. Sviageninov

Sine Solution of the Shallow Water Equations 80K. Al-Khaled

Finite Elements for Wave ProblemsGuest Editors: R. J. Astley, K. Gerdes, D. Givoli,

and I. Harari

Numerical Studies of Conjugated Infinite Elements forAcoustical Radiation 83

R. J. Astley and J. A. Hamilton

A Reflection Free Boundary Condition for Propagation inUniform Flow Using Mapped Infinite Wave Envelope Elements 84

W. Eversman

A Review of Infinite Element Methods for Exterior HelmholtzProblems 85

K. Gerdes

XIV

On Fundamental Aspects of Exterior Approximations withInfinite Elements 86

F. Ihlenburg

Finite Element Solution of Two-Dimensional AcousticScattering Problems Using Arbitrarily Shaped ConvexArtificial Boundaries 87

R. Djellouli, C. Farhat, A. Macedo, and R. Tezaur

Third-Order Doubly Asymptotic Approximations forComputational Acoustics 88

T. L. Geers and B. J. Toothaker

Analytical and Numerical Studies of a Finite Element PMLfor the Helmholtz Equation 89

/. Harari, M. Slavutin, and E. Turkel

Continued-Fraction Absorbing Boundary Conditions for theWave Equation 90

M. N. Guddati and J. L. Tassoulas

Optimal Local Nonreflecting Boundary Conditions forTime-Dependent Waves 91

/. Patlashenko and D. Givoli

Mixed Finite Elements with Mass-Lumping for the TransientWave Equation 92

G. Cohen and S. Fauqueux

Short Wave Modelling Using Special Finite Elements 93O. Laghrouche and P. Bettess

A Numerical Comparison of Finite Element Methods for theHelmholtz Equation 94

A. A. Oberai and P. M. Pinsky

Efficient Computation of Multi-Frequency Far-Field Solutionsof the Helmholtz Equation Using Pade Approximation 95

M. Malhotra and P. M. Pinsky

XV

An Iterative Time-Stepping Method for Solving First-Order TimeDependent Problems and Its Application to the Wave Equation 96

G. Seriani

Wave Propagation Modeling

Fictitious Domains, Mixed Finite Elements and PerfectlyMatched Layers for 2-D Elastic Wave Propagation 99

E. Becache, P. Joly, and C. Tsogka

Higher-Order Mass-Lumped Finite Elements for the WaveEquation 100

W. A. Mulder

Numerical Study of Elastic Wave Scattering by Cracks orInclusions Using the Boundary Integral Equation Method 101

E. Liu and Z. Zhang

Finite-Difference Modeling in Media with Many Small-ScaleCracks 102

G. B. Van Baren, G. C. Herman, and W. A. Mulder

Scale and Angle Dependent Reflection Properties of Self-SimilarInterfaces 103

J. Goudswaard and K. Wapenaar

Elastic Waves Generated by High-Speed Trains 104A. Ditzel, G. Herman, and P. Holscher

Adaptive Finite Element Techniques for the Acoustic WaveEquation 105

W. Bangerth and R. Rannacher

Wave Propagation in 2-D Elastic Media Using a Spectral ElementMethod with Triangles and Quadrangles 106

D. Komatitsch, R. Martin, J. Tromp, M. A. Taylor, andB. A. Wingate

A Comparative Study of Explicit Differential Operators onArbitrary Grids 107

M. Kdser, H. Igel, M. Sambridge, and J. Braun

XVI

A High-Order Fast Marching Scheme for the Linearized EikonalEquation 108

J. B. Franklin and J. M. Harris

Frequency Domain Wave Propagation Modeling in ExplorationSeismology 109

P. M. Gauzellino, J. E. Santos, and D. Sheen

Three-Dimensional Time Domain Modeling of Ultrasonic WavePropagation in Concrete in Explicit Consideration of Aggregatesand Porosity 110

F. Schubert and B. Koehler

Time Domain Modeling of Axisymmetric Wave Propagation inIsotropic Elastic Media with Cefit — Cylindrical ElastodynamicFinite Integration Technique 111

F. Schubert, B. Koehler, and A. Peiffer

On the Propagation of Acoustic Pulses in Porous Rigid Media: ATime-Domain Approach 112

Z. E. A. Fellah and C. Depollier

Triangle-Quadrangle Grid Method for Poroelastic, Elastic, andAcoustic Wave Equations 113

J. Zhang

Absorbing Layer via Wave-Equation Splitting 114J. M. Carcione and F. Cavallini

Optimised Absorbing Boundary Conditions for Elastic-WavePropagation 115

A. Lange, J. Zhou, and N. Saffari

Conjugated Infinite Elements for Two-Dimensional Time-HarmonicElastodynamics 116

T. Pinto and J.-P. Coyette

Inverse Problems and Tomography

Reconstruction of Layered Elastic Bottom Characteristics by theFrequency Dependence of Sound Reflectivity 119

V. N. Fokin and M. S. Fokina

XVII

Joint 3D Traveltime Inversion of P, S and Converted Waves 120G. Rossi and A. Vesnaver

Complete Families and Rayleigh Obstacles 121G. F. Crosta

A Simple Regularization Method for Solving Acoustical InverseScattering Problems 122

M. Piana

The Use of the Herglotz Function Method to Reconstruct Obstaclesfrom Real and from Synthetic Scattering Data 123

P. Maponi and F. Zirilli

Nonlinear Inversion of Piezoelectrical Transducer Impedance Data 124L. Carcione, J. Mould, V. Pereyra, D. Powell, and G. Wojcik

An Algorithm for the Fully Nonlinear Inverse Scattering Problemat Fixed Frequency 125

F. Natterer

Maximum Likelihood Inversion of Active Reverberation forBoundary Localization on a Moving Sonar Platform 126

R. B. Macleod

Mathematical Simulation in Diffraction Acoustical Tomographywith Multielement Transceiver 127

A. V. Osetrov and A. P. Khrenov

Radial Ultrasonic Tomography Technique as a New Method ofFlaw Imaging 128

A. V. Osetrov

Multiresolution in 3D Seismic Tomography Within Physical Limits 129G. Bohm, P. Galuppo, and A. Vesnaver

Geoacoustic Inversion in Shallow WaterGuest Editors: R. Chapman and M. Taroudakis

Objective Functions for Ocean Acoustic Inversion Derived byLikelihood Methods 133

C. F. Mecklenbrduker and P. Gerstoft

XVIII

Deductive Multi-Tone Inversion of Seabed Parameters 134M. A. Ainslie, R. M. Hamson, G. D. Horsley,A. R. James, R. A. Laker, M. A. Lee, D. A. Miles,and S. D. Richards

Tomographic Inversion for Geoacoustic Parameters inShallow Water 135

A. Tolstoy

Matched Field Tomographic Inversion to Determine RangeDependent Geoacoustic Properties 136

V. Corre, N. R. Chapman, and M. J. Wilmut

Identifying Modal Arrivals in Shallow Water for BottomGeoacoustic Inversions 137

M. I. Taroudakis

Geoacoustic Tomography: Range Dependent Inversions ona Single Slice 138

G. R. Potty and J. H. Miller

Nonlinear Soliton Interaction with Acoustic Signals:Focusing Effects 139

O. C. Rodriguez, S. Jesus, Y. Stephan, X. Demoulin,M. Porter, and E. Coelho

Seafloor Properties Determination from Acoustic Backscatteringat Normal Incidence with a Parametric Source 140

A. Caiti