Large eddy simulation of turbulent natural convection between symmetrically heated vertical parallel plates for water

Takuma Kogawa, Junnosuke Okajima, Atsuki Komiya, Steven Armfield, Shigenao Maruyama

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The boundary layer interaction effect of the turbulent natural convection in the gap between symmetrically heated vertical parallel plates was evaluated using a numerical simulation in the present study. A large eddy simulation was conducted, and a Vreman model was used as a dynamic subgrid-scale model. The numerical simulation was validated thorough a comparison with the experimental result for the turbulent natural convection adjacent to a single vertical heated plate. The boundary interaction effect was investigated by varying the gap between the parallel plates. The results showed that the flow for vertical parallel plates had a lower heat transfer rate than a vertical plate flow. The boundary layers and vortex structure were evaluated. The heat transfer was reduced as a result of a reduced velocity gradient in the outer region of the velocity boundary layer. The averaged heat transfer was similar to that of the laminar flow.

Original languageEnglish
Pages (from-to)870-877
Number of pages8
JournalInternational Journal of Heat and Mass Transfer
Volume101
DOIs
Publication statusPublished - 2016 Oct 1

Keywords

  • Boundary layer interaction
  • Large eddy simulation
  • Turbulent natural convection
  • Vertical parallel plates
  • Vreman model

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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