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Advances in Aircraft and Spacecraft Science
  Volume 2, Number 4, October 2015, pages 469-482
DOI: http://dx.doi.org/10.12989/aas.2015.2.4.469
 
open access

Assessment of the performances of a heat exchanger in a light helicopter
Antonio Carozza

 
Abstract
    This study has the aim to develop a numerical design regarding the position and the inner performances of a heat exchanger in a light helicopter. the problem was to find first of all the best position of the heat exchanger inside the engine vane in order to maximize the air flow rate capable to pass through the heat exchanger section. It is to be said that the only air contribution in the vane comes from the opening present in the roof under the main rotor. The design has been performed by means of the commercial code Fluent and using the well known grid generator ICEM CFD. Different positions are first investigated so to establish the best one. Subsequently, different areas of the opening on the roof have been considered in order to maximize even more the flow rate in the heat exchanger that was not sufficient based on the first guess of velocity, as aforementioned. At the end interesting design results are presented and discussed by contours of fields and values.
 
Key Words
    aerodynamics; CFD simulation; heat exchanger; mass flow rate
 
Address
Antonio Carozza: Dipartimento di Meccanica dei Fluidi, Centro Italiano Ricerche Aerospaziali, Capua, via Maiorise 81043, Italy
 

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