Abstract When flying at hypersonic speeds, it is a fundamental requirement to reduce the high drag resulting from a blunt nose cone. An aero spike can be attached on the front of the nose cone to obtain a high drag and heat load reduction. In this paper hypersonic flow with Mach number 6 around a spike is numerically simulated. The standard k–ε model was used for solving corresponding Reynolds Average Navier–Stoke equations. The computed results show that the drag coefficient of the spiked blunt body is reduced respect with no spiked body. Our numerical calculations also agrees with corresponding experimental work. Moreover the computed shock stand-off distance is in reasonable agreement with other related works.

    Highlights In this paper hypersonic flow with Mach number 6 around a spike is numerically simulated. The standard k–ε model was used for solving corresponding Reynolds Average Navier–Stoke equations. We can say the present model has the capability of providing reasonable predictions for the complex turbulent flows. The computed results show that the drag coefficient of the spiked blunt body is reduced respect with no spiked body.


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    Title :

    The drag reduction in spherical spiked blunt body


    Contributors:

    Published in:

    Acta Astronautica ; 99 ; 92-98


    Publication date :

    2014-02-12


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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