Flow control for a simplified truck using an array of streamwise synthetic jets
Paper i proceeding, 2018

LES simulations at Re = 1 × 10^5 and wind tunnel experiments at Re = 5 × 10^5 were conducted
to investigate the beneficial effect of an active flow control (AFC) technique on the aerodynamic performance of a
simplified truck geometry. The paper involves the investigation of a synthetic jet actuator characterized by periodic
blowing and suction that defines a zero net mass flux flow control mechanism. The actuation aims to suppress the
flow separation occurring at the A-pillar (front rounded corner) of a truck cabin. The work flow is defined as follow.
First, LES at low Reynolds number are conducted for different disposition of the actuation slots. The results show
a beneficial effect when the actuation slots are positioned in streamwise direction compared to spanwise (vertical)
direction. Second, based on the previous considerations, wind tunnel experiments are conducted to verify and
support the numerical findings. Both numerical solutions and experimental data show the same trend and the
superiority of streamwise aligned AFC slots.

synthetic jets

Wind tunnel

flow control

LES

Författare

Guglielmo Minelli

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Tanghong Liu

Central South University

Jie Zhang

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Valery Chernoray

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Branislav Basara

Chalmers, Mekanik och maritima vetenskaper

Sinisa Krajnovic

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Turbulence, Heat and Mass Transfer 9
Rio De Janeiro, Brazil,

Styrkeområden

Transport

Ämneskategorier

Strömningsmekanik och akustik

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Senast uppdaterat

2019-01-14