Aerodynamic properties of a BMW car model taking over a truck model are studied computationally by applying the scale-resolving PANS (Partially-averaged Navier-Stokes) approach. Both vehicles represent down-scaled (1:2.5), geometrically-similar models of realistic vehicle configurations for which on-road measurements have been performed by Schrefl (2008). The operating conditions of the modelled ‘on-road’ overtaking maneuver are determined by applying the dynamic similarity concept in terms of Reynolds number consistency. The simulated vehicle configuration constitutes of a non-moving truck model and a car model moving against the air flow, the velocity of which corresponds to the car velocity. The presently modelled ‘on-road’ overtaking maneuver is designed by reference to the complementary ‘quasi stationary’ event investigated experimentally in full-scale wind tunnel of the BMW Group in Munich/Ascheim by fixing the truck model at eight discrete positions relative to the car model, Schreffl (2008); accordingly, the results obtained are discussed also by reference to these measurements, in addition to the results of the realistic ‘on-road’ investigations. The turbulence modelling focus of the present work is on the validation of the PANS approach representing a variable-resolution hybrid LES/RANS modelling framework providing a smooth and seamless transition from Unsteady RANS (Reynolds-averaged Navier-Stokes) to LES (Large-eddy Simulation) in terms of a dynamic ‘resolution parameter’ variation, Basara et al. (2011). As a result of simulations detailed time-dependent mean flow and turbulence fields are obtained, thus enabling the study of the truck/car interference. The surface pressure distribution as well as the resulting drag, lift and side force and corresponding moment variations are discussed along with the available experimental database.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Scale-Resolving Simulation of an ‘On-Road’ Overtaking Maneuver Involving Model Vehicles


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Basara, Branislav (Autor:in) / Tropea, Cameron (Autor:in) / Kutej, Lukas (Autor:in) / Jakirlic, Suad (Autor:in)

    Kongress:

    WCX World Congress Experience ; 2018



    Erscheinungsdatum :

    03.04.2018




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Scale-Resolving Simulation of an `On-Road' Overtaking Maneuver Involving Model Vehicles

    Jakirlic, Suad / Kutej, Lukas / Basara, Branislav et al. | British Library Conference Proceedings | 2018


    Overtaking maneuver scenario building for autonomous vehicles with PreScan software

    Josue Ortega / Henrietta Lengyel / Zsolt Szalay | DOAJ | 2020

    Freier Zugriff

    IMPROVED OVERTAKING MANEUVER FOR OVERTAKING A PRECEDING THIRD PARTY VEHICLE

    NARDELLI GRAZIANO | Europäisches Patentamt | 2025

    Freier Zugriff


    IMPROVED OVERTAKING MANEUVER FOR OVERTAKING A PRECEDING THIRD PARTY VEHICLE

    NARDELLI GRAZIANO | Europäisches Patentamt | 2023

    Freier Zugriff