Engineering Physics Annotation << Back Supramolecular Formations Factor in the Dynamic Viscosity of Water Pavlov A.N. The dynamic viscosity of liquid water at temperatures below 290 K is non-monotonically dependent on pressure. This is due to the presence of supramolecular structures in the water, which are fractal aggregates. The fractal model allows you to describe the temperature and baric dependence of the dynamic viscosity of water. In particular, the phenomenon of decreasing viscosity with increasing pressure at temperatures below 290 K, which is not typical for liquids, occurs due to the destruction of fractals. Contributions to dynamic viscosity from both supramolecular structures and the chaotic component of water are determined. Keywords: dynamic viscosity, supramolecular structures, fractal, vacancy, Brownian motion. DOI: 10.25791/infizik.7.2026.1568 Pp. 47-51.