2019
DOI: 10.2514/1.j057876
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Abstract: Active flow control (AFC) subscale experiments were conducted at the Lucas Wind Tunnel of the California Institute of Technology. Tests were performed on a generic vertical tail model at low speeds. Fluidic oscillators were used at the trailing edge of the main element (vertical stabilizer) to redirect the flow over the rudder and delay or prevent flow separation. Side force increases in excess of 50% were achieved with a 2% momentum coefficient (C μ) input. The results indicated that a collective C μ of about… Show more

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Cited by 29 publications
(5 citation statements)
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“…Fluidic actuators placed at a tail of an aircraft were simulated using unsteady RANS and validated by means of experimental results by Shmilovich et al [44]. More recently, Andino et al [45] tested fluidic actuators in a generic tail at low speeds and demonstrated that a modest increase in the momentum coefficient can result in important increments of the side force. Whalen et al [46] presented wind-tunnel test results of the AFC of the vertical tail of a Boeing 757 equipped with sweeping jet actuators; a significant increase in the side force at a maximum rudder deflection of 30 • was observed.…”
Section: Active Control Of Separationmentioning
confidence: 99%
“…Fluidic actuators placed at a tail of an aircraft were simulated using unsteady RANS and validated by means of experimental results by Shmilovich et al [44]. More recently, Andino et al [45] tested fluidic actuators in a generic tail at low speeds and demonstrated that a modest increase in the momentum coefficient can result in important increments of the side force. Whalen et al [46] presented wind-tunnel test results of the AFC of the vertical tail of a Boeing 757 equipped with sweeping jet actuators; a significant increase in the side force at a maximum rudder deflection of 30 • was observed.…”
Section: Active Control Of Separationmentioning
confidence: 99%
“…Fluidic actuators placed at a tail of an aircraft were simulated using unsteady RANS and validated by means experimental results by Shmilovich et al [44]. More recently, Andino et al [45] tested fluidic actuators in a generic tail at low speeds and demonstrated that a modest increase of the momentum coefficient can result in important increments of the side force. Whalen et al [46] presented wind-tunnel test results of the AFC of the vertical tail of a Boeing 757 equipped with sweeping jet actuators; significant increase in the side force at maximum rudder deflection of 30 • was observed.…”
Section: Active Control Of Separationmentioning
confidence: 99%
“…One of the most prominent research areas is focused on using fluidic oscillators for active flow control. These devices have been shown to prevent flow separation over a highly deflected surface, thereby significantly increasing the aerodynamic performance of aircraft [11][12][13]. It is hypothesized that fluidic oscillators are more efficient than steady jets and require less mass flow, because the jets' sweeping motion provides greater lateral impact, thereby allowing for increased jet spacing and fewer jets needed.…”
Section: Figurementioning
confidence: 99%