Morphology of Experimental and Simulated Turing Patterns
Morphology of Experimental and Simulated Turing Patterns
Morphology of Experimental and Simulated Turing Patterns
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5.5 Minkowski-maps <strong>of</strong> patterns in the CIMA reaction . . . . . . . . . . 725.6 Minkowski analysis <strong>of</strong> the CDIMA reaction (De Kepper et al.) . . . 755.7 Minkowski functionals <strong>of</strong> patterns in other reaction-diffusion models 786 Influence <strong>of</strong> additive noise on pattern formation in the LE model 816.1 Influence on pattern stability . . . . . . . . . . . . . . . . . . . . . . 816.2 Influence on convergence . . . . . . . . . . . . . . . . . . . . . . . . . 826.3 Influence <strong>of</strong> noise on pattern morphology . . . . . . . . . . . . . . . 827 Statistical ensemble <strong>of</strong> superposed basic patterns 877.1 A simple model with superposition <strong>of</strong> patterns . . . . . . . . . . . . 877.2 Minkowski analysis for superposed patterns . . . . . . . . . . . . . . 907.2.1 Hexagonal state . . . . . . . . . . . . . . . . . . . . . . . . . 907.2.2 Lamellar state . . . . . . . . . . . . . . . . . . . . . . . . . . 927.2.3 Turbulent state . . . . . . . . . . . . . . . . . . . . . . . . . . 927.3 Interacting pattern gas . . . . . . . . . . . . . . . . . . . . . . . . . . 977.3.1 Derivation <strong>of</strong> the interaction energy . . . . . . . . . . . . . . 977.3.2 Second order approximation . . . . . . . . . . . . . . . . . . . 987.3.3 Numerical results . . . . . . . . . . . . . . . . . . . . . . . . . 997.4 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1008 Summary <strong>and</strong> outlook 1039 Pattern formation in granular systems 1059.1 <strong>Experimental</strong> setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1059.2 Measurements <strong>and</strong> observed patterns . . . . . . . . . . . . . . . . . . 106A Details on experimental datasets 10910