Figure 1. Test of 1D particle diffusion of a solute (particles) in a solvent (gas) with (panels (b) and (d) and without (panels (a), (c)) corrections for the density of the solvent. Top row: the solid line shows the number of particles in each X bin of the simulation; the dashed line shows the region where all particles were initially released. Bottom row: density of particles (number of particles in each X bin divided by the local gas density). The solid histogram shows the particles, the dashed line shows the initial state, and the solid sinus curve shows the absolute density of the gas. Left column: without using the density corrections, right column: using the density correction.
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