Publication Date:
1977-03-09
Description:
An investigation of the existence of purely thermal intermittency has been undertaken for the flow produced by a step change in temperature in a decaying homogeneous turbulent field. The results show that a thermal interface can be defined and that it is a random function of space and time, having gross characteristics similar to the turbulent interface in a free shear flow. A technique for identifying the hot and cold regions of the fluid in a systematic way was developed and this permitted conditional averages of the mean and fluctuating temperature to be formed. © 1977, Cambridge University Press. All rights reserved.
Print ISSN:
0022-1120
Electronic ISSN:
1469-7645
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
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