Two-dimensional NACA 23012 airfoil performance degradation by super cooled cloud, drizzle, and rain drop icing

Ashenden, Russell; Lindberg, William R.; Marwitz, John D.

doi:10.2514/6.1996-870

Cited by 9 publications

(10 citation statements)

References 3 publications

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“…Fig. 5 shows that the lift curve measured in this work is similar to Pouryoussefi et al's results [34], whereas Ashenden et al [33] has a more similar behavior to the XFOIL predictions. The reduction in measured lift performance could be due to the different measuring techniques: Ashenden et al measured local section lift coefficient using pressure taps, whereas the present results correspond to the average total lift as measured by the force balances.…”

Section: A Aerodynamic Forcessupporting

confidence: 85%

“…5 shows both experimental and predicted lift and drag curves. The experimental data was obtained from Ashenden et al [33] and Pouryoussefi et al [34], which both tested at similar Reynolds numbers ( = 550, 000 and = 600, 000, respectively). However, it is important to note that these two experiments used pressure taps on the surface to obtain both lift and drag.…”

Section: A Aerodynamic Forcesmentioning

confidence: 99%

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Experimental Aerodynamic Comparison of Active Camber Morphing and Trailing-Edge Flaps

Rivero¹,

Fournier²,

Μανωλέσος

et al. 2021

AIAA Journal

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Unlike hinged flaps (e.g. ailerons, elevator and rudder), camber morphing devices vary camber distribution in a smooth and continuous way, resulting in aerodynamic efficiency improvements due to the absence sharp changes in airfoil camber. One such camber morphing concept, the Fish Bone Active Camber (FishBAC) device, has shown significant aerodynamic benefits when compared to a flap. In this work, a quasi-2D wind tunnel test was performed to investigate the aerodynamic performance of a FishBAC device and compare it to a trailing edge plain flap. A combination of quasi-steady force balance and wake rake pressure measurements were used to determine aerodynamic force coefficients. These measurements are complemented

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Section: A Aerodynamic Forcessupporting

confidence: 85%

Section: A Aerodynamic Forcesmentioning

confidence: 99%

Experimental Aerodynamic Comparison of Active Camber Morphing and Trailing-Edge Flaps

Rivero¹,

Fournier²,

Μανωλέσος

et al. 2021

AIAA Journal

View full text Add to dashboard Cite

show abstract

“…Fig. 8 shows that the lift curve measured in this work is similar to Pouryoussefi et al's results [28], whereas Ashenden et al [27] has a similar behaviour to XFOIL. The reduction in measured lift performance could be due to the different measuring techniques: Ashenden et al measured local section lift coefficient using pressure taps, whereas the presented results correspond to the average total lift as measured by the force balances.…”

Section: A Aerodynamic Forcessupporting

confidence: 86%

“…When analyzing the drag coefficient results in Fig. 8, it is observed that the obtained experimental results (wake rake) are similar to those obtained by Ashenden et al [27]. Unlike lift coefficient, drag coefficient was calculated using local section wake rake data instead of average forces (force balance).…”

Section: A Aerodynamic Forcessupporting

confidence: 73%

“…8 shows both experimental and predicted lift and drag curves. The experimental data was obtained from Ashenden et al [27] and Pouryoussefi et al [28], which both tested at similar Reynolds numbers (Re = 550000 and Re = 600000, respectively). However, it is important to note that these two experiments used pressure taps on the surface to obtain both lift and drag.…”

Section: A Aerodynamic Forcesmentioning

confidence: 99%

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Wind Tunnel Comparison of Flapped and FishBAC Camber Variation for Lift Control

Rivero

Fournier

Μανωλέσος

et al. 2020

AIAA Scitech 2020 Forum

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Unlike hinged flaps (e.g. ailerons, elevator and rudder), camber morphing devices vary camber distribution in a smooth and continuous way, resulting on aerodynamic efficiency improvements due to the absence of surface discontinuities. One such camber morphing concept, the Fish Bone Active Camber (FishBAC) device, has shown significant aerodynamic benefits when compared to a flap. A 2D wind tunnel test was performed to further investigate the FishBAC's behavior in terms of its aerodynamic performance and the size and structure of the shed wake. To establish a direct comparison, a hinged flap was also tested under equivalent flow conditions. A combination of quasi-steady force balance and wake rake pressure measurements were used to determine aerodynamic force coefficients. Additionally, these measurements are complemented by a flow visualization study performed using Particle Image Velocimetry, where a visual comparison on the size and vortical structure of the near field wakes was conducted. Results show that the FishBAC achieves at least 16% higher aerodynamic efficiency than the flap.

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