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Natural convection heat transfer increase at the laminar--turbulent transition in the presence of instationary longitudinal vortices

Biertümpfel, R. and Beer, Hans (2003):
Natural convection heat transfer increase at the laminar--turbulent transition in the presence of instationary longitudinal vortices.
In: International Journal of Heat and Mass Transfer, 46 (16), pp. 3109-3117. ISSN 00179310,
[Article]

Abstract

Heat transfer of a liquid to a solid wall in natural convection is studied in the regime of laminar to turbulent transition in the presence of longitudinal vortices. These vortices lead to an increase in heat transfer, especially in their later stage before breakdown. This last increase is significant and even higher than one would expect for a turbulent flow. In this work heat transfer was studied numerically and in experiments using thermochromic liquid crystals.

Item Type: Article
Erschienen: 2003
Creators: Biertümpfel, R. and Beer, Hans
Title: Natural convection heat transfer increase at the laminar--turbulent transition in the presence of instationary longitudinal vortices
Language: English
Abstract:

Heat transfer of a liquid to a solid wall in natural convection is studied in the regime of laminar to turbulent transition in the presence of longitudinal vortices. These vortices lead to an increase in heat transfer, especially in their later stage before breakdown. This last increase is significant and even higher than one would expect for a turbulent flow. In this work heat transfer was studied numerically and in experiments using thermochromic liquid crystals.

Journal or Publication Title: International Journal of Heat and Mass Transfer
Journal volume: 46
Number: 16
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
Date Deposited: 26 Feb 2015 16:25
Official URL: http://dx.doi.org/10.1016/S0017-9310(03)00079-6
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