# Enhanced Transport of Two Spheres in Viscous Fluid

## TL;DR

This paper presents a numerical study showing that two spheres moving in viscous fluid can travel farther together than alone, implying hydrodynamic interactions can enhance transport efficiency in biological systems.

## Contribution

It introduces a numerical solution for the synchronized motion of two spheres in viscous fluid, revealing how their interaction improves transport efficiency.

## Key findings

- Presence of a second sphere increases travel distance for a given work
- Hydrodynamic interactions can enhance molecular motor cargo transport
- Results suggest potential biological implications for cargo movement

## Abstract

We obtain a numerical solution for the synchronous motion of two spheres moving in viscous fluid. We find that for a given amount of work performed, the final distance travelled by each sphere is increased by the presence of the other sphere. The result suggests that the transport efficiency of molecular motor cargo in vivo may be improved due to an effective hydrodynamic interaction with neighboring cargos moving along the same direction.