Enhancement of heat transfer in turbulent separated and reattaching flow by local forcing

Gwang Hoon Rhee, Hyung Jin Sung

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A numerical study was made of heat transfer in locally forced turbulent separated and reattaching flow over a backward-facing step. The local forcing was given to the flow by means ofa sinusoidally oscillating jet from a separation line. The Rhee and Sung version of the unsteady k – ϵ – fμ model and the diffusivity tensor heat transfer model were m employed. The Reynolds number was fixed at ReH = 33,000 H and the forcing frequency was varied in the range 0 ≤ fH /Uμ ≤ 2. The condition of constant heat flux was imposed at the bottom wall. The predicted results were compared and validated with the experimental data of Chun andSung and Vogel and Eaton. The enhancement of heat transfer in turbulent separated and reattaching flow by local forcing was evaluated and analyzed.

Original languageEnglish
Pages (from-to)733-753
Number of pages21
JournalNumerical Heat Transfer; Part A: Applications
Volume37
Issue number7
DOIs
StatePublished - 12 Jun 2000

Fingerprint

Dive into the research topics of 'Enhancement of heat transfer in turbulent separated and reattaching flow by local forcing'. Together they form a unique fingerprint.

Cite this