Work

Simulation of Passenger Car Aerodynamics in Overtaking Manoeuvres with an Adaptive Lattice Boltzmann Method

Year: 2024

Type: conference-paper

Abstract: Using the freely available DriAer passenger car geometries, the benefits of our Cartesian adaptive lattice Boltzmann solver AMROC-LBM for simulating the aerodynamics of vehicles in motion are demonstrated.A large eddy simulation (LES) approach with wall function model is applied to approximate the transient turbulent flow field, while motion is incorporated in a scalable way by representing complex moving bodies with signed distance level set functions and moving wall boundary conditions.The adaptive lattice Boltzmann-LES method in AMROC-LBM is first validated against experimentally measured drag coefficients of a single car geometry.Subsequently, a study of an overtaking manoeuvrer at 25% scale is conducted and verified with previously obtained simulation results from StarCCM+.Finally, predictions for a realistic overtaking manoeuvrer at full scale are presented.

Source: Civil-comp conferences

DOI: 10.4203/ccc.8.6.1

Authors: R. Deiterding, J. Harding, M. Grondeau

Institutions: University of Southampton, Université de Caen Normandie, Laboratoire Universitaire des Sciences Appliquées de Cherbourg

Language: English

Topic: Lattice Boltzmann Simulation Studies

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: Engineering and Physical Sciences Research Council

Award: G1801855550