# Reversed Currents in Charged Liquid Bridges

## TL;DR

This paper reanalyzes the velocity profile in charged water bridges, revealing that a radial charge distribution can cause a sign change in mass flow, with implications for understanding electrohydrodynamic phenomena.

## Contribution

It introduces a model considering radial charge distribution in water bridges, predicting flow reversal phenomena not previously described.

## Key findings

- Radial charge distribution can reverse flow direction.
- Analytical solutions show sign change in mass flow.
- Surface potential analogous to Zeta potential influences flow.

## Abstract

The velocity profile in a water bridge is reanalyzed. Assuming hypothetically that the bulk charge has a radial distribution, a surface potential is formed that is analogous to the Zeta potential. The Navier Stokes equation is solved, neglecting the convective term; then, analytically and for special field and potential ranges, a sign change of the total mass flow is reported caused by the radial charge distribution.