Enhancement of heat transfer by flexible vortex generators with inclination angle

Min Sik Kang, Sung Goon Park

Research output: Contribution to journalArticlepeer-review

Abstract

Heat transfer is an important aspect to consider when designing systems in various industries, and many researchers have introduced vortex generators to improve the heat transfer. In the case of a rigid vortex generator, energy loss is generated owing to a high pressure drop. In recent years, numerous studies have been conducted to improve heat transfer using a flexible vortex generator. In this study, an asymmetric inclined flexible flag was adopted as the vortex generator and an immersed boundary method was used to consider the fluid-flexible body interaction. When the bending rigidity of the flexible vortex generator was constant, the fluttering motion of the vortex generator increased as the inclination angle increased, and vortex structures were produced by the fluttering motion, thereby increasing the heat transfer. When the inclination angles were 45° and 135°, the heat transfer was observed to be increased by 2% and 116%, respectively.

Original languageEnglish
Pages (from-to)155-164
Number of pages10
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume45
Issue number3
DOIs
StatePublished - 2021

Keywords

  • Enhancement of Heat Transfer
  • Flexible Vortex Generators
  • Fluid-Structure-Thermal Interaction
  • Immersed Boundary Method

Fingerprint

Dive into the research topics of 'Enhancement of heat transfer by flexible vortex generators with inclination angle'. Together they form a unique fingerprint.

Cite this