Pre-compression by the winward surface of the aerospace plane is necessary for scramjet operation. However, this pre-compression causes spillage from the high-pressure windward surface toward the sides of the plane. In order to examine the effects of this side-spillage, the performance of a scramjet engine was evaluated using a 1-D flow model, and payload to the low earth orbit estimated using an aerospace plane flight simulation. Prior to the simulation, tests with scramjet inlet models were conducted in a Mach 4 wind tunnel to identify the primary features of the side-spillage to assist in the simulation. The models were inclined from the flow direction to simulate the skewed flow near the side of the plane during side-spillage, and the experiments proved that the aerodynamic performance of the inlet was not affected by the inclination for the entrance Mach number given to the models.


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    Title :

    Technical Report of National Aerospace Laboratory. Effect of Sides-Spillage from Airframe on Scramjet Engine Performance


    Contributors:
    K. Tani (author) / T. Kanda (author) / K. Kudo (author) / D. Akihisa (author)

    Publication date :

    2000


    Size :

    26 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English