Natural convection heat transfer in enclosures with conducting multiple partitions and side walls


Turkoglu H., Yucel N.

HEAT AND MASS TRANSFER, cilt.32, ss.1-8, 1996 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32
  • Basım Tarihi: 1996
  • Doi Numarası: 10.1007/s002310050084
  • Dergi Adı: HEAT AND MASS TRANSFER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.1-8
  • Gazi Üniversitesi Adresli: Evet

Özet

The how and heat transfer in enclosures with conducting multiple partitions and side walls were numerically analyzed. Side walls were kept at isothermal conditions, while top and bottom walls were insulated. Employing control volume approach, a computer program based on SIMPLE algorithm was developed. Computations were carried out to investigate the effects of Rayleigh number, number of partitions and cavity aspect ratios on the heat transfer rate. The mean Nusselt numbers were calculated from computed temperature fields. It was observed that, the mean Nusselt number decreases with increasing partition number. It is inversely proportional to (1 + N) for N less than or equal to 4. For all partition numbers, the mean Nusselt number increases with increasing Rayleigh number. On the other hand, the cavity aspect ratio does not affect the mean Nusselt number to a considerable extent for considered aspect ratios in this study.