Universal wave-number selection laws in apical growth.

Goh, Ryan; Beekie, Rajendra; Matthias, Daniel; Nunley, Joshua; Scheel, Arnd · Phys Rev E · 2016

basic_science · Level V

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Abstract

We study pattern-forming dissipative systems in growing domains. We characterize classes of boundary conditions that allow for defect-free growth and derive universal scaling laws for the wave number in the bulk of the domain. Scalings are based on a description of striped patterns in semibounded domains via strain-displacement relations. We compare predictions with direct simulations in the Swift-Hohenberg, the complex Ginzburg-Landau, the Cahn-Hilliard, and reaction-diffusion equations.