The unsteady flow and heat transfer in corrugated axisymmetric channel having an arc shaped profile is here investigated. Both a two and a three-dimensional model is considered by performing numerical simulations within the Femlab 3.0a© environment. The objective is to localize and to describe the transition from the steady flow to the unstable time periodic regime. The results enable to verify the inappropriateness of the two-dimensional approach in describing this phenomenon.
NUMERICAL STUDY OF UNSTEADY FLOW AND HEAT TRANSFER IN A TUBE WITH ARC-SHAPED CORRUGATION / RAINIERI, Sara; BOZZOLI, Fabio; PAGLIARINI, Giorgio. - 1:(2005), pp. 196-201. ( 4th International Conference on Computational Heat and Mass Transfer Paris-Cachan, FRANCE May 17–20, 2005).
NUMERICAL STUDY OF UNSTEADY FLOW AND HEAT TRANSFER IN A TUBE WITH ARC-SHAPED CORRUGATION
BOZZOLI, Fabio;
2005
Abstract
The unsteady flow and heat transfer in corrugated axisymmetric channel having an arc shaped profile is here investigated. Both a two and a three-dimensional model is considered by performing numerical simulations within the Femlab 3.0a© environment. The objective is to localize and to describe the transition from the steady flow to the unstable time periodic regime. The results enable to verify the inappropriateness of the two-dimensional approach in describing this phenomenon.
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