Transient natural convection heat transfer in a large-diameter cylinder

✍ Scribed by P.S. Beloff; A. Bejan; A. Campo

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 908 KB
• Volume: 1
• Category: Article
• ISSN: 0894-1777
• DOI: 10.1016/0894-1777(88)90006-4

✦ Synopsis

IIThis paper describes an experimental study of transient natural convection heating and cooling of a 30 cm diameter horizontal cylinder filled with water or water-glycerol solutions. The Rayleigh number range covered by these experiments is 8 x 107-3 X 109. The flow regime is turbulent. The overall Nusselt numbers measured when the cylinder is filled only partially with water agree with the other measurements and low-Ra correlations, provided the average heat flux is based on the wetted portion of the cylinder surface. Qualitative descriptions of the turbulent circulation during heating experiments are also reported.