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Path: Home » Indice Pubblicazioni » Convegni ATI - Accesso riservato soci CTI » CA - 50 - Saint Vincent 1995 » Entropic dissipation maps in mixed co...

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Entropic dissipation maps in mixed convection flows

Pubblicazione


Autore: E. Cafaro, A. Saluzzi

Collana: CA - 50 - Saint Vincent 1995

Note:
The paper presents a method for evaluating the local entropy generation and the global exergetic dissipation in mixed convective flows. A standard well-tested computer fluid-dynamic code FLUENT is employed to solve the coupled momentum and energy equations and the resulting velocity and temperature fields are used to compute, by a specific subroutine ENTREXE, the local entropy production term and the global exergetic dissipation. The procedure is a rather general one and can be applied to a variety of flow-configurations and to fluid of different physical characteristics. Maps of irreversible entropy production due to heat transfer and viscous dissipation are proposed which can be employed as a guide to design changes in devices and to analysis of unstable flows.


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