In high speed engines, thorough turbulent mixing of fuel and air is required to obtain high performance and high efficiency. Thus, the ability to predict turbulent mixing is crucial in obtaining accurate numerical simulation of an engine and its performance. Current state of the art in CFD simulation is to assume both turbulent Prandtl number and Schmidt numbers to be constants. However, since the mixing of fuel and air is inversely proportional to the Schmidt number, a value of 0.45 for the Schmidt number will produce twice as much diffusion as that with a value of 0.9. Because of this, current CFD tools and models have not been able to provide the needed guidance required for the efficient design of a scramjet engine.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Variable Turbulent Schmidt Number Formulation for Scramjet Application


    Contributors:
    X. Xiao (author) / J. R. Edwards (author) / H. A. Hassan (author)

    Publication date :

    2004


    Size :

    12 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    A Variable Turbulent Schmidt Number Formulation for Scramjet Application

    Xiao, Xudong / Edwards, Jack / Hassan, Hassan et al. | AIAA | 2005


    Variable Turbulent Schmidt Number Formulation for Scramjet Applications

    Xiao, X. / Edwards, J. R. / Hassan, H. A. et al. | British Library Conference Proceedings | 2005


    Variable Turbulent Schmidt-Number Formulation for Scramjet Applications

    Xudong Xiao / Jack Edwards / Hassan Hassan et al. | AIAA | 2006



    Modeling scramjet flows with variable turbulent Prandtl and Schmidt numbers

    Xiao, X. / Hassan, H.A. / Baurle, R.A. | Tema Archive | 2007