Nanofluids are kinds of fluids engineered by dispersing nanoparticles in base fluids. After full evaporation drying of nanofluids, the nanoparticles are left on the substrate and can self-organize in different structures on the substrate. The fractal-like branched structures can be formed, these phenomena are simulated in the study. Two dimensional lattice-gas model is applied in the process of the residual thin film evaporation drying. The Monte Carlo simulations show the formation of well-developed fractal aggregates for this configuration. The results of simulations are in good agreement with previously reported experimental results in residual nanofluid thin-film drying.

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