Numerical Investigation of Inlet Distortion on a Wing-Embedded Lift Fan

Thouault, N.; Breitsamter, Christian; Adams, Nikolaus A.

doi:10.2514/1.46046

Cited by 8 publications

(2 citation statements)

References 16 publications

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“…Steady and unsteady Reynolds averaged Navier-Stokes (URANS) computations have been performed using the k2o SST turbulence model. The flow physics prediction capability has been assessed against a wide range of aerodynamic measurements in a related work [55][56][57]. As reference, URANS simulations of the fan installed in a duct with a homogeneous inflow have been conducted.…”

Section: Aeroacoustic Investigations Of a Generic Fan-in-wing Configumentioning

confidence: 99%

Aeroacoustics research in Europe: The CEAS-ASC report on 2011 highlights

McAlpine

Astley

2012

Journal of Sound and Vibration

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Section: Aeroacoustic Investigations Of a Generic Fan-in-wing Configumentioning

confidence: 99%

Aeroacoustics research in Europe: The CEAS-ASC report on 2011 highlights

McAlpine

Astley

2012

Journal of Sound and Vibration

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“…Ohanian et al [18] explored the novel applications of synthetic jet actuators for leading and trailing edge flow control on ducted fan vehicles, and both concepts were proven to be successful. Thouault et al [19] investigated the aerodynamic force and flowfield of a generic fan-in-wing configuration using CFD simulation, particle image velocimetry, and wool-tufts visualization. Dogru et al [20] evaluated the thrust of the ducted fantail located in a ground effect region using the static pressure measure system.…”

Section: Introductionmentioning

confidence: 99%

Numerical Prediction of Unsteady Aerodynamics of a Ducted Fan Unmanned Aerial Vehicle in Hovering

2022

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Recently, ducted fan unmanned aerial vehicles (UAVs) have attracted considerable attention due to their potential for application in both civil and military missions. Compared with free propellers, the presence of duct can in principle decrease the flow contraction after propeller, and gives the potential to fly efficiently with high security, compact structure, and low noise. In the present study, a ducted fan UAV is designed using the open source code OpenProp. The computational fluid dynamics (CFD) simulation model using sliding mesh technique is established and validated as a reliable tool for highly vortical flows by propeller thrust experiment. The effect of the duct, revolution speed, and distance between propellers on the aerodynamic characteristics of the ducted fan UAV is evaluated in detail. Results show that the unducted coaxial upper and lower propellers generate 3.8%, 4.3% more thrust than the unducted single propellers, respectively, and the unducted upper and lower propellers generate 55.9%, 34.9% more thrust than ducted propellers, respectively. The ducted fan UAV generates 5.7% more thrust and consumes 39.1% less power than the unducted coaxial propellers. The thrust of the ducted fan UAV increases first and then follows with a decreased tendency as the distance between propellers increases.

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