ACTIVE FLOW CONTROL FOR TRUCKS: FROM THEORY TO PRACTICE
Paper i proceeding, 2017

The possibility to actively control the external aerodynamic of vehicles is an attractive yet challenging solution to decrease the aerodynamic drag and the fuel consumption. The workflow that describes the implementation of an Active Flow Control (AFC), for the suppression of the separated flow at the A-pillar of a truck, is condensate in this paper. The presented work spans the process from a theoretical verification of the method to a preliminary implementation of an AFC on a real full-scale truck cabin. The study involves CFD and experimental work, including aerodynamic test in a full-scale wind tunnel. The milestones of this process are listed below: - Identification of the problem, Fig. 1. - Preliminary CFD (LES) study, Fig. 2. - CFD (PANS) study of a simplified truck cabin model, Fig. 3. - Experiments on a simplified cabin model and actuation of the flow, Fig. 4. - Full-scale preliminary test (cabin), Fig. 5. - Future: full-scale wind tunnel test (force measurements), cabin + trailer. - Future: piezo electric actuators.

Författare

Guglielmo Minelli

Chalmers, Tillämpad mekanik, Strömningslära

Sinisa Krajnovic

Chalmers, Tillämpad mekanik, Strömningslära

Linus Hjelm

Björn Bergqvist

Svenska Mekanikdagarna, Uppsala, 12-13 juni 2017

Styrkeområden

Transport

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Farkostteknik

Strömningsmekanik och akustik