Temperature field measurement of an axisymmetric laminar plume

D. J. Shlien*, Raymond L. Boxman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The temperature field of axisymmetric laminar plumes generated in water from a small heat source located in a large horizontal plane was measured interferometrically for heat injection rates of 1.5 and 0.72 cal/sec at heights of up to 19 cm above the source. For a height of 19 cm and heat injection rate of 1.5 cal/sec, steady state was reached within 5 sec of the passage of the starting cap; an axial temperature of 3.1°C above ambient was measured, and the diameter at half that temperature was 4 mm. The experimental results were compared with previous analytic solutions for plumes generated from ideal isolated point sources. Good agreement was obtained if the concept of an apparent source is utilized.

Original languageEnglish
Pages (from-to)631-634
Number of pages4
JournalPhysics of Fluids
Issue number4
StatePublished - 1979


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