Observation and numerical modelling of density currents resulting from thermal transients in a non rectilinear pipe
作者:
P. L. Viollet,
期刊:
Journal of Hydraulic Research
(Taylor Available online 1987)
卷期:
Volume 25,
issue 2
页码: 235-261
ISSN:0022-1686
年代: 1987
DOI:10.1080/00221688709499301
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
In aU-shaped pipe, are studied the density effects following a change in the inlet temperature. When the flow rate is small and the temperature difference high, thermal stratifications appear. The two-dimensional numerical modelling uses finite difference methods with a curvilinear grid, andk-εa models for turbulence. The computation allows to predict with good accuracy the phenomena which are observed from experiment.
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