- Physical Review Journals
All JournalsPhysics Magazine

Physical Review Fluids

Export citation

Export citation

Choose format for download:

Download Citation
  • Letter

Resonance-driven heat transfer enhancement in a natural convection boundary layer perturbed by a moderate impinging jet

Naoto Ogasawara1,2,*, Juan F. Torres3,*, Yuki Kanda2, Takuma Kogawa4, and Atsuki Komiya2

  • 1School of Engineering, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8579, Japan
  • 2Institute of Fluid Science, Tohoku University, Katahira, Aoba-ku, Sendai 980-8577, Japan
  • 3School of Engineering, Australian National University, Canberra, ACT 2601, Australia
  • 4National Institute of Technology Hachinohe College, Uwanotai, Tamonoki, Hachinohe 039-1192, Japan

  • *These authors contributed equally to this work.
PDF

Phys. Rev. Fluids 6, L061501 – Published 17 June, 2021

DOI: https://doi.org/10.1103/PhysRevFluids.6.L061501

Abstract

We report a resonance-driven convective heat transfer enhancement downstream of a natural convection boundary layer that is perturbed by a moderate impinging jet. Flow resonance is experimentally and numerically confirmed between the boundary layer and a periodic flow driven by the unbalance of jet momentum and buoyancy. When the oscillation frequency in the impinging region is a submultiple of the characteristic frequency of natural convection, downstream heat transfer enhancement E from the baseline of natural convection exceeds 40%. In contrast, further increasing the jet momentum fourfold yields E<20%. The results support the development of efficient heat transfer enhancement methods.

View figure in article

Physics Subject Headings (PhySH)

Authorization Required

We need you to provide your credentials before accessing this content.

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Phys. Rev. Fluids 6, L061501– Published 17 June, 2021
  • Received 28 December 2020
  • Accepted 11 May 2021
Crossmark - Check for updates button

©2021 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation