Numerical simulation for absorbing boundary conditions

Kokalanov, Vasko (2008) Numerical simulation for absorbing boundary conditions. Masters thesis, RUHR Universitaet Bochum.

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The model developed in this theses is another confirmation that the Dirichlet boundary conditions (fixed displacements) and the Neumann boundaries (stress free boundary) are boundary conditions which produce reflection. Due to the reflection, the whole incoming energy coming towards the boundary with the wave field is reflected back in the model and hence the energy is captivated inside the model. The model with this kind of boundaries cannot provide accurate results.
Despite that more than 30 years are gone since the Absorbing boundary conditions were introduced by Clayton and Engquist, these boundaries are often used in the practical and research applications nowadays. They are simple to apply, in the problem of wave propagation and artificial boundary conditions. They don’t require long computational time and hence are very computationally inexpensive.

Item Type: Thesis (Masters)
Subjects: Engineering and Technology > Civil engineering
Engineering and Technology > Other engineering and technologies
Divisions: Faculty of Computer Science
Depositing User: Vasko Kokalanov
Date Deposited: 29 Aug 2013 11:46
Last Modified: 03 Mar 2017 08:54

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