2019
DOI: 10.1007/s10494-019-00058-4
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Abstract: 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 … Show more

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Cited by 9 publications
(6 citation statements)
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“…Similar changes of the separation area as an effect of the control were also found in previous separation drag studies (Minelli et al. 2019; Banchetti et al. 2020).…”
Section: Turbulent-flow Physicssupporting
confidence: 87%
See 1 more Smart Citation
“…Similar changes of the separation area as an effect of the control were also found in previous separation drag studies (Minelli et al. 2019; Banchetti et al. 2020).…”
Section: Turbulent-flow Physicssupporting
confidence: 87%
“…After the bar, although the control shifts the second reattachment point downstream, this change only marginally affects the pressure-drag balance, which is instead mainly influenced by the dynamics in the whole separated region and by the flow modifications upstream of the bar. Similar changes of the separation area as an effect of the control were also found in previous separation drag studies (Minelli et al 2019;Banchetti et al 2020).…”
Section: Controlled Instantaneous Fields and Average Flowsupporting
confidence: 87%
“…The choice of the active flow control (AFC) positioning is supported by previous work performed by the authors. In particular, in Minelli et al (2019) the sensitivity of the positioning of the jet slot is described. In the latter work, it is shown that the control performed at its best when positioned very close to the separation point of the front curvature, being in this case at 45 • with respect to the streamwise direction.…”
Section: Methodology and Numerical Set-upmentioning
confidence: 99%
“…2018 a ), synthetic jets (Minelli et al. 2019, 2020), pulsed jets (Joseph, Amandolese & Aider 2012; Joseph et al. 2013), steady suction and blowing (Rouméas, Gilliéron & Kourta 2009; Prakash, Bergada & Mellibovsky 2018; Cerutti et al.…”
Section: Introductionmentioning
confidence: 99%
“…To improve the aerodynamic performance of vehicles, a numerous studies on active flow control (AFC) for the turbulent shear layers have been conducted in recent decades, such as steady jet blowing (Littlewood & Passmore 2012;Zhang et al 2018a), synthetic jets (Minelli et al 2019(Minelli et al , 2020, pulsed jets (Joseph, Amandolese & Aider 2012;Joseph et al 2013), steady suction and blowing (Rouméas, Gilliéron & Kourta 2009;Prakash, Bergada & Mellibovsky 2018;Cerutti et al 2020), and plasma actuators (Shadmani et al 2018;Kim, Do & Choi 2020). This is because AFC not only achieves the comprehensive improvement on energy saving, running safety and ride comfort (Minelli et al 2017), but also enables the feedback or closed-loop control on the separated flow around vehicles (Brunton & Noack 2015;Amico, Cafiero & Iuso 2022a).…”
Section: Introductionmentioning
confidence: 99%