An Application of the Cahn-Hilliard Approach to Smoothed Particle Hydrodynamics

Figure 3

Time series of composition of the fluid mixture at 𝑡=0 (a), 𝑡=15 (b), 𝑡=50 (c), 𝑡=150 (d), 𝑡=500 (e), and 𝑡=∞ (f). Results with SPH and free surfaces boundary conditions and 50 × 50 particles. Gray scale shows the composition. Dark represents 𝑐=1. Parameters are 𝑐₀=0.4, 𝜔=1, 𝑘_𝐵𝑇=0.21, and 𝜅=2. (g)–(i) are results with FD and Neumann boundary conditions and 2500 grid points at 𝑡=15 (g), 𝑡=50 (h), and 𝑡=∞ (i).

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