Investigations of the turbulent thermal-hydraulic performance in circular heat exchanger tubes with multiple rectangular winglet vortex generators
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DOI: 10.1016/j.applthermaleng.2019.114838
Abstract: Abstract This work explores the turbulent thermal-hydraulic performance in circular heat exchanger tubes with multiple rectangular winglet vortex generators. Numerical simulations demonstrate that multi-longitudinal vortices are induced, which enhances fluid mixing in the tubes. The… read more here.
Keywords: turbulent thermal; thermal hydraulic; number; performance circular ... See more keywords
Effects of rotation on temperature fluctuations in turbulent thermal convection on a hemisphere
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DOI: 10.1038/s41598-018-34782-0
Abstract: Rotation is present in many physical and geophysical systems and its role in determining flow properties and modifying turbulent fluctuations is of crucial importance. Here we focus on the role of rotation on temperature fluctuations… read more here.
Keywords: rotation temperature; fluctuations turbulent; temperature; turbulent thermal ... See more keywords
Mechanism of large-scale flow reversals in turbulent thermal convection
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DOI: 10.1126/sciadv.aat7480
Abstract: Rare massive eruption of thermal plumes causes random reversals of the large-scale flow in turbulent thermal convection. It is commonly believed that heat flux passing through a closed thermal convection system is balanced so that… read more here.
Keywords: large scale; turbulent thermal; scale flow; convection ... See more keywords