Unsteady flow in a supercritical supersonic diffuser

Analyse par des methodes asymptotiques de l'ecoulement instationnaire a travers un diffuseur supersonique bidimensionnel avec une onde de choc normale. On considere deux regimes: l'un correspondant a l'ecoulement fondamentalement instationnaire, le second a l'ecoulement quasistationnaire. On presente une solution unifiee contenant les deux regimes

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