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Optimization of a Cooling Circuit in an Internal Combustion Engine for Marine Applications
Technical Paper
2005-24-049
ISSN: 0148-7191, e-ISSN: 2688-3627
Sector:
Language:
English
Abstract
An optimization study involving both fluid-dynamic and
thermostructural aspects has been carried out for a 2200 cc
turbocharged engine head for marine applications. In this
cross-disciplinary problem, the structural and thermodynamic
aspects have been decoupled. A preliminary set of CFD numerical
analyses of the cooling jacket layout has been performed, in order
to investigate critical aspects of the present configuration and
improve the cooling performance, by means of local flow patterns
and flow distribution analysis. At a second stage, temperature
distributions within the metal cast parts have been derived from
CFD in order to assess the fatigue strength of the component with
structural finite elements. A proper choice of both CFD methodology
and boundary conditions is carried out in order to determine a
trade-off between computational effort and actual engine behavior
representation. The proposed modelling procedure allows a
sensitivity study to be carried out of the engine head to
variations of the leading geometric parameters, thus devising an
optimized component.
The methodology favored in this study is finally applied to
carry out a comparison between the basic configuration and a
fluid-dynamic improved solution, in order to estimate the
effectiveness of the design optimization on the fatigue strength of
the component.
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Authors
- G. Cantore - University of Modena and Reggio Emilia
- S. Fontanesi - University of Modena and Reggio Emilia
- V. Gagliardi - University of Modena and Reggio Emilia
- S. Malaguti - University of Modena and Reggio Emilia
- A. Baldini - University of Modena and Reggio Emilia
- M. Giacopini - University of Modena and Reggio Emilia
- A. Strozzi - University of Modena and Reggio Emilia
- R. Rosi - University of Modena and Reggio Emilia