Temperature measurements in a turbulent round plume

Abstract

The basic objective of this paper is to present and analyze some experimental information regarding the structure of the mean and fluctuating temperature field in a turbulent, vertical round water plume issuing into non-stratified, non-moving ambient water. The focus of this study is the transition of plume-like flows to fully developed self-preserved plumes. One interesting result of this paper is that self preservation of the turbulent field is accomplished at approximately twice the normalized axial distance required for self-preservation of the mean temperature field. It is found that the normalized centerline intensity of temperature fluctuations has an asymptotic value of 44% in the fully developed region.