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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/1472

Título: Effect of corrugation angle on the hydrodynamic behaviour of power-law fluids during a flow in plate heat exchangers
Autor: Fernandes, Carla S.
Dias, Ricardo P.
Nóbrega, João M.
Maia, João M.
Palavras-chave: Plate heat exchangers
Power-law fluids
Corrugation angle
Fanning friction factor
Issue Date: 2005
Citação: Fernandes, Carla S.; Dias, Ricardo P.; Nóbrega, João M.; Maia, João M. (2005) - Effect of corrugation angle on the hydrodynamic behaviour of power-law fluids during a flow in plate heat exchangers. In 5th International Conference on Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology.
Resumo: In this study, CFD calculations were made in order to analyze the hydrodynamic behaviour of a power-law fluid in the channels of plate heat exchangers with corrugation angles of 30º and 60º during a non-isothermal flow. For the observed laminar flow, the numerical results show that a typical velocity profile in the 3D channel of the plate heat exchanger with corrugation angle 30º assumes an approximate parabolic shape and that for a corrugation angle of 60º the profile have a irregular core. Simulations considering and discarding the influence of temperature on the non-Newtonian fluid viscosity were performed for the two geometries and the impact of these variations on the relations between fanning friction factors and Reynolds number was analyzed as well as on the ratio between wall and bulk shear rate.
URI: http://hdl.handle.net/10198/1472
Appears in Collections:DEMAT - Artigos em Proceedings Não Indexados ao ISI
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