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

Naoto Ogasawara, Juan F. Torres, Yuki Kanda, Takuma Kogawa, Atsuki Komiya

研究成果: Article査読

1 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号L061501
ジャーナルPhysical Review Fluids
6
6
DOI
出版ステータスPublished - 2021 6

ASJC Scopus subject areas

  • 計算力学
  • モデリングとシミュレーション
  • 流体および伝熱

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