The flow and cavitation in the flow passage of the control valve are calculated, and the effects of operating conditions (including injection pulse width, rail pressure and ball valve lift) on the flow and cavitation characteristics are analyzed under dynamic boundary conditions. The simulation results show that the cavitation in the outflowing control-orifice (OA) and the guide-hole are almost unaffected by these operating conditions. In contrast, the cavitation process in the ball valve chamber has two distinct stages, which can be classified as violent and relatively smooth. The shorter the pulse width, the more severe the average degree of cavitation in the ball valve chamber; however, the risk of cavitation erosion on the ball valve and the ball valve seat surface does not increase too much. The increase of rail pressure and the increase of ball valve lift will aggravate the cavitation, and the cavitation position will move forward closer to the sealing annular surface.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Numerical Study on Cavitation Flow Characteristics in Diesel Fuel Injector Control Valve


    Additional title:

    Int.J Automot. Technol.


    Contributors:
    Liu, Jingbin (author) / Liu, Zhenming (author) / Wu, Jiechang (author) / Gu, Xiaolei (author)

    Published in:

    Publication date :

    2022-08-01


    Size :

    17 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    Computational Evaluation of Nozzle Flow and Cavitation Characteristics in a Diesel Injector

    Bastawissi, H.A.E.-D. / Elkelawy, M. / Society of Automotive Engineers | British Library Conference Proceedings | 2012


    Computational Evaluation of Nozzle Flow and Cavitation Characteristics in a Diesel Injector

    Bastawissi, Hagar Alm El-Din / Elkelawy, Medhat | SAE Technical Papers | 2012


    Cavitation-induced flow field inside fuel injector nozzles

    Roosen,P. / Unruh,O. / Univ.Aachen,DE et al. | Automotive engineering | 1998