Analysis of HMM for One Dimensional Wave Propagation Problems Over Long Time
2011 (English)Article in journal (Refereed) Submitted
Multiscale problems are computationally costly to solve by direct simulation because the smallest scales must be represented over a domain determined by the largest scales of the problem. We have developed and analyzed new numerical methods for multiscale wave propagation following the framework of the heterogeneous multiscale method. The numerical methods couple simulations on macro- and microscales for problems with rapidly fluctuating material coefficients. The computational complexity of the new method is significantly lower than that of traditional techniques. We focus on HMM approximation applied to long time integration of one-dimensional wave propagation problems in both periodic and non-periodic medium and show that the dispersive effect that appear after long time is fully captured.
Place, publisher, year, edition, pages
2011. no 1111.2541
IdentifiersURN: urn:nbn:se:kth:diva-48311OAI: oai:DiVA.org:kth-48311DiVA: diva2:457321
QC 201111172011-11-172011-11-172015-09-23Bibliographically approved