Spatial confinement causes lifetime enhancement and expansion of vortex rings with positive filament tension
We study the impact of spatial confinement on the dynamics of three-dimensional (3D) excitation vortices with circular filaments. In a chemically active medium we observe a decreased contraction rate of such scroll rings and even expanding ones, despite their positive filament tension. All experimen...
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Published in: | New journal of physics Vol. 17; no. 9; pp. 93043 - 93051 |
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Abstract | We study the impact of spatial confinement on the dynamics of three-dimensional (3D) excitation vortices with circular filaments. In a chemically active medium we observe a decreased contraction rate of such scroll rings and even expanding ones, despite their positive filament tension. All experimentally observed regimes of spatially confined scroll ring evolution are reproduced by full 3D numerical integration of the underlying reaction-diffusion equations. Additionally, we propose a kinematical model that takes into account the interaction of the scroll ring with a no-flux boundary. Its predictions agree quantitatively with data obtained from simulations of the reaction-diffusion model. |
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AbstractList | We study the impact of spatial confinement on the dynamics of three-dimensional (3D) excitation vortices with circular filaments. In a chemically active medium we observe a decreased contraction rate of such scroll rings and even expanding ones, despite their positive filament tension. All experimentally observed regimes of spatially confined scroll ring evolution are reproduced by full 3D numerical integration of the underlying reaction–diffusion equations. Additionally, we propose a kinematical model that takes into account the interaction of the scroll ring with a no-flux boundary. Its predictions agree quantitatively with data obtained from simulations of the reaction–diffusion model. |
Author | Steinbock, Oliver Totz, Jan Frederik Engel, Harald |
Author_xml | – sequence: 1 givenname: Jan Frederik surname: Totz fullname: Totz, Jan Frederik email: jantotz@itp.tu-berlin.de organization: Institut für Theoretische Physik , EW 7-1, TU Berlin, Hardenbergstr. 36, D-10623 Berlin, Germany – sequence: 2 givenname: Harald surname: Engel fullname: Engel, Harald organization: Institut für Theoretische Physik , EW 7-1, TU Berlin, Hardenbergstr. 36, D-10623 Berlin, Germany – sequence: 3 givenname: Oliver surname: Steinbock fullname: Steinbock, Oliver organization: Florida State University Department of Chemistry and Biochemistry, Tallahassee, Florida 32306-4390, USA |
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CitedBy_id | crossref_primary_10_1063_1_5022745 crossref_primary_10_1016_j_carbon_2019_10_030 crossref_primary_10_1088_2515_7639_aaed4c crossref_primary_10_1103_PhysRevE_105_054213 crossref_primary_10_1063_5_0005281 crossref_primary_10_1103_PhysRevE_96_012203 crossref_primary_10_1103_PhysRevE_102_010601 crossref_primary_10_1038_s41586_021_03682_1 crossref_primary_10_1016_j_physleta_2017_08_001 crossref_primary_10_1063_1_4955492 crossref_primary_10_1103_PhysRevLett_123_258102 crossref_primary_10_1063_1_5008274 crossref_primary_10_1103_PhysRevE_99_012211 crossref_primary_10_1088_2399_6528_ac1750 crossref_primary_10_1063_1_4962173 crossref_primary_10_1103_PhysRevE_108_064406 crossref_primary_10_1140_epje_i2016_16061_2 |
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SubjectTerms | 05.45.a Boundaries Computer simulation Confinement Dynamic tests Evolution Filaments Fluid flow Mathematical models Numerical integration Organic chemistry pattern formation Physics Reaction-diffusion equations reaction-diffusion system scroll ring spatial confinement spiral wave Three dimensional Vortex rings |
Title | Spatial confinement causes lifetime enhancement and expansion of vortex rings with positive filament tension |
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