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FLOW CONTROL FOR A GENERIC TRUCK CABIN USING SYNTHETIC JET

Guglielmo Minelli (Institutionen för tillämpad mekanik, Strömningslära) ; Erwin Hartono (Institutionen för tillämpad mekanik, Strömningslära) ; Sinisa Krajnovic (Institutionen för tillämpad mekanik, Strömningslära) ; Valery Chernoray (Institutionen för tillämpad mekanik, Strömningslära) ; Linus Hjelm
European Drag Reduction and Flow Control Meeting – EDRFCM 2017 April 3–6, 2017, Rome, Italy (2017)
[Konferensbidrag, refereegranskat]

Active flow control can be applied using a various number of approaches. The general, yet ultimate, goal is to use a control strategy able to actively manipulate a separated flow. Reattachment or deflection of the shear layer is of main importance to enhance the aerodynamic performance of blunt and aerodynamic bodies. The experiments presented in this paper show the achievements of a synthetic jet used to mitigate and eventually suppress the recirculation bubble occurring at the A-pillars of a truck, Fig. 1a. The model consists of a simplified truck cabin, characterized by sharp edge separation on top and bottom edges and pressure induced separation on the rounded vertical front corners. The pressure induced separation reproduces the flow detachment occurring at the front A-pillars of a real truck. Figures and dimensions of the model are presented in Figs. 1 (b and c), 2, and Tab. 1, respectively. Time resolved PIV was employed to investigate the flow (Re = 5 × 10 5 ), Fig. 3. The snapshots were post processed using modal and phase averaged analyses.



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Denna post skapades 2017-07-27. Senast ändrad 2017-09-14.
CPL Pubid: 250821

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära (2005-2017)

Ämnesområden

Transport
Farkostteknik
Strömningsmekanik

Chalmers infrastruktur