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arXiv · 2603.12941

Electrohydrodynamic Stresses from Hydrogen-Bond Network Dynamics in Water

Pramodt Srinivasula
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Abstract

The resistance of hydrogen-bond networks to ambient flow in water produces viscoelectric stresses and contributes to electrostrictive pressure. Within Onsager's nonequilibrium thermodynamic framework, a lattice-gas description of aqueous electrolytes is combined with a coarse-grained hydrodynamic representation of hydrogen-bonded molecular networks, where viscous dissipation is modeled through energetically equivalent Brownian entities. This formulation connects molecular structural information from experiments and molecular dynamics to a unified dipolar Poisson-Nernst-Planck-Stokes (dPNP-S) continuum theory, quantitatively reproducing the measured viscoelectric coefficient of Jin et al. (PNAS 2022) and contributions to electrostrictive pressure. These results identify a microscopic mechanism by which hydrogen-bond dynamics influence electrohydrodynamic flow.

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Pramodt Srinivasula. 2026-03-13. Electrohydrodynamic Stresses from Hydrogen-Bond Network Dynamics in Water. https://arxiv.org/abs/2603.12941

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