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Assessment of a Two-Equation Eddy-Viscosity Turbulence Model in Crosswind Simulation of a Heavy Ground Vehicle
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design. Adana Alparslan Turkes Science and Technology University, Faculty of Engineering, Department of Mechanical Engineering, Turkey.ORCID iD: 0000-0001-5994-4565
KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design. KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Vehicle Engineering and Solid Mechanics, Vehicle Dynamics.ORCID iD: 0000-0001-8928-0368
KTH, School of Engineering Sciences (SCI), Engineering Mechanics. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.ORCID iD: 0000-0003-0176-5358
2021 (English)In: SAE International Journal of Commercial Vehicles, ISSN 1946-391X, E-ISSN 1946-3928, Vol. 14, no 1, article id 02-15-01-0002Article in journal (Refereed) Published
Abstract [en]

The present study assesses the use of a two-equation eddy-viscosity turbulence model, which is a shear-stress transport (SST) k-ω turbulence model, in two-way coupled aerodynamics and vehicle dynamics simulation of a heavy ground vehicle subjected to crosswind. The obtained results are compared with the corresponding results of the improved delayed detached-eddy simulation (IDDES) conducted at similar conditions from the previous literature. The aim is to evaluate the effects of different turbulence models used in aerodynamics simulations to resolve the vehicle dynamics results in two-way coupled simulations. The results present that the absolute relative percent differences between the lateral displacement, yaw angle and roll angle results of the SST k-ω and the IDDES simulations are less than 1%, 3%, and 10%, respectively. As for the aerodynamics results, the absolute relative percent differences between the lateral force, yaw moment, and roll moment of the SST k-ω, and the IDDES simulations are less than 7.3%, 8.5%, and 10.0%, respectively. The results also show that the magnitudes of the lateral force, roll moment, and yaw moment are mostly increased due to the crosswind excitations among all other force and moment components. The yaw moment presents the fastest response to the crosswind excitations.

Place, publisher, year, edition, pages
SAE International , 2021. Vol. 14, no 1, article id 02-15-01-0002
Keywords [en]
Crosswind, Coupled simulation, Heavy ground vehicle, GTS, SST k-ω
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-299517DOI: 10.4271/02-15-01-0002ISI: 000743042300007Scopus ID: 2-s2.0-85109924918OAI: oai:DiVA.org:kth-299517DiVA, id: diva2:1583999
Note

QC 20220131

Available from: 2021-08-10 Created: 2021-08-10 Last updated: 2022-06-25Bibliographically approved

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Tural, TunayDrugge, LarsO'Reilly, Ciarán J.

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Aeronautical and Vehicle EngineeringVinnExcellence Center for ECO2 Vehicle designVehicle DynamicsEngineering Mechanics
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