Communication to : SFT 97 - Congres francais de thermique Sup'Aero, Toulouse (France), 20-22 mai 1997Available from INIST (FR), Document Supply Service, under shelf-number : 22419, issue : a.1997 n.88 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc