Heat Transfer Around a Tube in a Bank

Abstract

An experimental study was made to investigate the heat transfer and flow around the third and fourth ones of four cylinders of in-line in a cross flow of air. The in-line pitch ratio was in the range 1.15 <__= c/d <__= 5.0, where c is the center to center distance and d the cylinder diameter, and in the Reynolds number 12000 < Re_d < 50000. The heat transfer characteristics of the third and fourth cylinders are found to exhibit a strong dependency upon the separation point of their upstream cylinders.