76th Annual Meeting of the APS Division of Fluid Dynamics (November 19, 2023 — November 21, 2023)

P0034: Acoustically Enhanced Condensation in Saturated Liquid-Vapor Flow

  • Matthew Hughes, Georgia Institute of Technology
  • Thomas Boziuk, Georgia Institute of Technology
  • Ari Glezer, Georgia Institute of Technology
  • Srinivas Garimella, Georgia Institute of Technology
DOI: https://doi.org/10.1103/APS.DFD.2023.GFM.P0034

Improved fluid mixing is of great practical interest in heat exchangers and chemical processes, and often times the disparity in fluid properties and their velocities limit the efficiency of these processes. We find that low-frequency acoustic actuation coupled to a vapor-flow induces Helmholtz resonance within a refrigerant condenser tube, exciting liquid-vapor shear instabilities therby improving fluid mixing. The images here show the transition in the two-phase flow morphology from a calm, stratified flow of liquid and vapor to one that is finely dispersed mixture of the fluids.

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