Characteristic frequencies of transonic diffuser flow oscillations

Etude en fonction du nombre de Mach du choc et de la longueur du diffuseur des caracteristiques de l'ecoulement moyen et instationnaire d'un diffuseur transsonique supercritique. Les distributions de densite spectrale de puissance du mouvement de choc instationnaire presente trois pics distincts, suivant les conditions d'ecoulement

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