Περίληψη:
The present work describes an effort to model the operation of a system of recuperative heat
exchangers of an aero engine for real engine operating conditions. The modelling was performed with the combined
use of a porous medium model and a thermo mechanical model. The porous medium model was taking into account
the heat transfer and pressure loss behaviour of the heat exchangers while the thermo mechanical one was used for
the calculation of the wall temperature distribution of the elliptic tubes of the heat exchangers. As it is presented, the
combined use of these models can provide a useful tool which can help in the prediction of the macroscopic
behaviour of the system of recuperative heat exchangers of the aero engine which can be used for optimization
purposes and numerical studies.