<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Time-dependent problems modeled by hyperbolic partial differential equations can be reformulated in terms of boundary integral equations and solved via the boundary element method. In this context, the analysis of damping phenomena that occur in many physics and engineering problems is a novelty. Starting from a recently developed energetic space-time weak formulation for 1D damped wave propagation problems rewritten in terms of boundary integral equations, we develop here an extension of the so-called energetic boundary element method for the 2D case. Several numerical benchmarks, whose numerical results confirm accuracy and stability of the proposed technique, already proved for the numerical treatment of undamped wave propagation problems in several dimensions and for the 1D damped case, are illustrated and discussed. </p></abstract>

Time-dependent problems modeled by hyperbolic partial differential equations can be reformulated in terms of boundary integral equations and solved via the boundary element method. In this context, the analysis of damping phenomena that occur in many physics and engineering problems is a novelty. Starting from a recently developed energetic space-time weak formulation for 1D damped wave propagation problems rewritten in terms of boundary integral equations, we develop here an extension of the so-called energetic boundary element method for the 2D case. Several numerical benchmarks, whose numerical results confirm accuracy and stability of the proposed technique, already proved for the numerical treatment of undamped wave propagation problems in several dimensions and for the 1D damped case, are illustrated and discussed.

Energetic BEM for the numerical analysis of 2D Dirichlet damped wave propagation exterior problems

Communications in Applied and Industrial Mathematics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Time-dependent problems modeled by hyperbolic partial differential equations can be reformulated in terms of boundary integral equations and solved via the...

Energetic BEM for the numerical analysis of 2D Dirichlet damped wave propagation exterior problems

Online veröffentlicht: 20. Juli 2017

Seitenbereich: 103 - 127

Eingereicht: 07. Nov. 2016

Akzeptiert: 02. Mai 2017

DOI: https://doi.org/10.1515/caim-2017-0006

Schlüsselwörter
Damped wave equation, energy, boundary element method

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Energetic BEM for the numerical analysis of 2D Dirichlet damped wave propagation exterior problems

Online veröffentlicht: 20. Juli 2017

Seitenbereich: 103 - 127

Eingereicht: 07. Nov. 2016

Akzeptiert: 02. Mai 2017

DOI: https://doi.org/10.1515/caim-2017-0006

SchlüsselwörterDamped wave equation, energy, boundary element method

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Schlüsselwörter
Damped wave equation, energy, boundary element method