dc.contributor.author | Biktasheva, I. V. | |
dc.contributor.author | Dierckx, H. | |
dc.contributor.author | Biktashev, V. N. | |
dc.date.accessioned | 2015-03-26T10:25:54Z | |
dc.date.issued | 2015-02-11 | |
dc.description.abstract | A scroll wave in a very thin layer of excitable medium is similar to a spiral wave, but its behavior is affected by the layer geometry. We identify the effect of sharp variations of the layer thickness, which is separate from filament tension and curvature-induced drifts described earlier. We outline a two-step asymptotic theory describing this effect, including asymptotics in the layer thickness and calculation of the drift of so-perturbed spiral waves using response functions. As specific examples, we consider drift of scrolls along thickness steps, ridges, ditches, and disk-shaped thickness variations. Asymptotic predictions agree with numerical simulations. | en_GB |
dc.description.sponsorship | FWO-Flanders (Belgium) | en_GB |
dc.description.sponsorship | Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
dc.identifier.citation | Vol. 114 (6), article 068302 | en_GB |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevLett.114.068302 | |
dc.identifier.grantnumber | EP/D074789/1 | en_GB |
dc.identifier.grantnumber | EP/I029664/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/16625 | |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.relation.url | http://www.ncbi.nlm.nih.gov/pubmed/25723248 | en_GB |
dc.title | Drift of scroll waves in thin layers caused by thickness features: asymptotic theory and numerical simulations | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2015-03-26T10:25:54Z | |
dc.identifier.issn | 0031-9007 | |
exeter.place-of-publication | United States | |
dc.description | Copyright © 2015 American Physical Society | en_GB |
dc.identifier.eissn | 1079-7114 | |
dc.identifier.journal | Physical Review Letters | en_GB |