A Lagrangian random vortex-boundary element method has been developed for the simulation of unsteady incompressible flow inside three-dimensional domains with time-dependent boundaries, similar to IC engines. The solution method is entirely grid-free in the fluid domain and eliminates the difficult task of volumetric meshing of the complex engine geometry. Furthermore, due to the Lagrangian evaluation of the convective processes, numerical viscosity is virtually removed; thus permitting the direct simulation of flow at high Reynolds numbers. In this paper, a brief description of the numerical methodology is given, followed by an example of induction flow in an off-centered port-cylinder assembly with a harmonically driven piston and a valve seat situated directly below the port. The predicted flow is shown to resemble the flow visualization results of a laboratory experiment, despite the crude approximation used to represent the geometry.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    3D Vortex Simulation of Intake Flow in a Port-Cylinder with a Valve Seat and a Moving Piston


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1996



    Erscheinungsdatum :

    01.05.1996




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    3D Vortex simulation of intake flow in a port-cylinder with a valve seat and moving piston

    Gharakhani,A. / Ghoniem,A.F. / Massachusetts Inst.of Technology,Cambridge,US | Kraftfahrwesen | 1996


    Intake and Cylinder Flow Modeling with a Dual-Valve Port

    Rutland,C.J. / Pieper,C.M. / Hessel,R. et al. | Kraftfahrwesen | 1993


    Intake and Cylinder Flow Modeling with a Dual-Valve Port

    Rutland, C. J. / Pieper, C. M. / Hessel, R. | SAE Technical Papers | 1993



    Numerical Simulation of Intake Port and In-Cylinder Flow in a Two-Valve Multi-Cylinder Diesel Engine

    Gao, Jian / Cuneo, Giacomo | British Library Conference Proceedings | 2016