An experimental and three-dimensional numerical study of natural convection heat transfer between two horizontal parallel plates

Turgut O., Onur N.

International Communications in Heat and Mass Transfer, cilt.34, sa.5, ss.644-652, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 5
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.icheatmasstransfer.2007.02.001
  • Dergi Adı: International Communications in Heat and Mass Transfer
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.644-652
  • Anahtar Kelimeler: horizontal parallel plate, natural convection, isothermal wall temperature, fluent, INSTABILITY
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, experimental and three-dimensional numerical studies were performed to investigate the effects of plate spacing and temperature difference on natural convection between isothermally heated upward-facing lower horizontal plate and externally insulated horizontal upper plate. Air is used as the heat transfer medium. Rayleigh number varied in the 1108-2.339 × 105 range. Several numerical simulations for three-dimensional steady laminar and turbulent flows heat transfer were carried out using a commercial CFD code Fluent 6.2. Results have shown that there is a good agreement between the numerical and present experimental results as well as with available data in literature. © 2007 Elsevier Ltd. All rights reserved.