Table of Content

Open Access iconOpen Access

ARTICLE

DIRECT SIMULATIONS OF BIPHILIC-SURFACE CONDENSATION: OPTIMIZED SIZE EFFECTS

Zijie Chena , Sanat Modaka, Massoud Kavianya,* , Richard Bonnerb

a Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, the United States
b Advanced Cooling Technologies, Lancaster, PA, 17601, the United States

Frontiers in Heat and Mass Transfer 2020, 14, 1-11. https://doi.org/10.5098/hmt.14.1

Abstract

In dropwise condensation on vertical surface, droplets grow at nucleation sites, coalesce and reach the departing diameter. In biphilic surfaces, when the hydrophobic domain is small, the maximum droplet diameter is controlled by the shortest dimension where the droplets merge at the boundary. Through direct numerical simulations this size-effect heat transfer coefficient enhancement is calculated. Then the 1-D biphilic surface is optimized considering the size-dependent hydrophilic domain partial flooding (directly simulated as a liquid rivulet and using the capillary limit), the subcooling (heat flux) and condenser length effects. The predicted performance is in good agreement with the available experiments.

Keywords


Cite This Article

Chen, Z., Kaviany, M. (2020). DIRECT SIMULATIONS OF BIPHILIC-SURFACE CONDENSATION: OPTIMIZED SIZE EFFECTS. Frontiers in Heat and Mass Transfer, 14(1), 1–11.



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 263

    View

  • 240

    Download

  • 0

    Like

Related articles

Share Link