A LARGE SCALE ANALYSIS FOR ULTRASONIC WAVE PROPAGATION USING PARALLELIZED FDTD METHOD

A finite difference time domain method (FDTD) is based on a grid-based time domain differential technique, in which wave equations are solved in a leapfrog manner. It is required to discretize a whole target domain into computational grids with an adequate size. Therefore computational burden increa...

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Published inReview of Progress in Quantitative Nondestructive Evaluation Volume 27A (AIP Conference Proceedings Volume 975) Vol. 975; pp. 107 - 114
Main Authors Nakahata, K, Tokunaga, J, Kimoto, K, Hirose, S
Format Journal Article
LanguageEnglish
Published 01.01.2008
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ISBN9780735404946
0735404941
ISSN0094-243X
DOI10.1063/1.2902552

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Summary:A finite difference time domain method (FDTD) is based on a grid-based time domain differential technique, in which wave equations are solved in a leapfrog manner. It is required to discretize a whole target domain into computational grids with an adequate size. Therefore computational burden increases if the computational domain is much larger than the wave length. To solve such a large-scale problem in high speed, we apply a parallel computing technique to the FDTD. OpenMP is an interface to execute program codes in parallel using a shared memory system of computers. As an example of large-scale analysis, SH wave propagations in concrete material are demonstrated in this study.
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ISBN:9780735404946
0735404941
ISSN:0094-243X
DOI:10.1063/1.2902552