Condensate droplets coalescing on superhydrophobic surfaces exhibit unique roaming behaviour, distinct from gravity-driven removal, offering potential for enhanced heat transfer in condensation processes critical to energy and water applications. Authors report that this phenomenon arises from stochastic nucleation-induced adhesion asymmetries, which drive droplet motion, improve surface renewal, and outperform jumping droplets in heat transfer efficiency.
- Cheuk Wing Edmond Lam
- Kartik Regulagadda
- Dimos Poulikakos