This volume constitutes the proceedings of the 1997 IUTAM Symposium, where invited researchers in acoustics, aeronautics, elastodynamics, electromagnetics, hydrodynamics, and mathematics discussed non-reflecting computational boundaries. The participants formulated benchmark problems for evaluating computational boundaries, as described in the first article.

Inhalt

Preface. Benchmark Problems; T.L. Geers. Recent Advances in Applying Wave-Envelope Elements to Unbounded Wave Problems; R.J. Astley. Water-Wave Green's Function for a 3D Uneven-Bottom Problem with Different Depths at x --> + INFINITY and x --> -INFINITY; G.A. Athanassoulis, K.A. Belibassakis. New Mapped Wave Infinite Element and Diffraction of Waves by Elliptical Cylinders of Varying Aspect Ratio; J.A. Bettess, P. Bettess. Absorbing Boundaries for Acoustic Wave Propagation Problems; J. Bielak, et al. Multipole-Based 3-D Infinite Elements: An Ellipsoidal Acoustic Element and a Spherical Electromagnetic Element; D.S. Burnett, R.L. Holford. A Practical Comparison of Finite Element and Boundary Element Formulations for Modeling Sound Radiation from Elastic Plates; J.-P. Coyette, L. Cremers. Approximation of Transient Hydrodynamics on Unbounded Domains Using Rational Functions; C.J. Damaren. Proof of Convergence for the Coupled Finite/Infinite Element Methods for Helmholtz Exterior Boundary-Value Problems; L. Demkowicz, F.Ihlenburg. Uses of the Berenger PML in Pseudospectral Methods for Maxwell's Equations; T.A. Driscoll, B. Fornberg. ETA Expressions for the High Frequency Impedance of a Uniformly Pulsating Submerged Torus; C.A. Felippa. Wave vs. Geometric Based Modeling of Barriers with Atmospheric Effects; K.R. Fyfe, A. Muradali. Calculation of Transient Response of Viscoelastic Unbounded Domains by Direct Boundary Element Method; L. Gaul, M. Schanz. Singly and Doubly Asymptotic Computational Boundaries; T.L. Geers. Infinite Element Methods; K. Gerdes. Optimal Local Artificial Boundary Conditions; D. Givoli, I. Patlashenko. Reduction of the Complexity of the Intrinsically Nonlinear Problem of Aerodynamic Sound Generation in an Unbounded Medium; S.M. Grace, A.D. Pierce. Transient Analysis of Wave Propagation in Unbounded Media: Space-Time Methods and Continued-Fraction Implementations; M.N. Guddati, J.L. Tasosulas. Exact and High-Order Boundary Conditions in the Time Domain; T. Hagstrom. A Variational Formulation for Partitioned Exterior Problems; I. Harari. A Systematic Approach for Constructing Asymptotic Boundary Conditions for Wave-Like Equations; S.I. Hariharan, T. Hagstrom. Experience with PML Boundary Conditions in Fluid-Flow Computations; M.E. Hayder, H.L. Atkins. Absorbing Boundary Conditions for Dispersive Waves; R.L. Higdon. Absorbing Boundary Conditions of Arbitrary Shape for the Three-Dimensional Wave Equation; L.F. Kallivokas, et al. Acoustic and Electromagnetic Scattering by Large Resonant Structures; G.A. Kriegsmann. A Comparison Between Time and Frequency Domain Approaches for Rigid Body Scattering Problems; I.C. Mathews, S. Newhouse. Optimizing the Perfectly Matched Layer; P. Monk, F. Collino. Implementing Highly Accurate Non-Reflecting Boundary Conditions for Large Scale Problems in Structural Acoustics; A.A. Oberai, et al. Progress on Highly Accurate Non-Reflecting Boundary Conditions for Finite Element Simulations of Transient Acoustics Problems; A.J. Safjan. The Scaled Boundary Finite-Element Method: Future Developments; Chongmin Song, J.P. Wolf. On the Combined Implementation of Global Boundary Conditions with Central Difference Multigrid Flow Solvers; S.V. Tsynkov. A Response Analysis of Very Large Floating Structure under Airplane Landing by FEM and a Sponge Layer for the Unbounded Domain; E. Watanabe, T. Utsunomiya. The Scaled Boundary Finite-Element Method: State of the Art; J.P. Wolf, Chongming Song. Absorbing Boundary Conditions for Domain Decomposition; B. Engquist, Hong-Kai Zhao.