Effects of a fillet on the flow past a wing body junction

Devenport, William J.; Dewitz, Michael B.; Agarwal, Nidhi; Poddar, Kamal

doi:10.2514/6.1989-986

Cited by 13 publications

(23 citation statements)

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“…The effect of employing fillets at the leading edge of wing-body junctures was assessed experimentally by Kubendran and Harvey [29] and Devenport et al [21,22]. Kubendran and Harvey [29] noted that the fillets provide a reduction in the measured drag coefficient of the arrangement at moderate angle of attack.…”

Section: Subsonic Flowmentioning

confidence: 99%

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Numerical prediction of the interference drag of a streamlined strut intersecting a surface in transonic flow

Tetrault

2000

38th Aerospace Sciences Meeting and Exhibit

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In transonic flow, the aerodynamic interference that occurs on a strut-braced wing airplane, pylons, and other applications is significant. The purpose of this work is to provide relationships to estimate the interference drag of wing-strut, wing-pylon, and wing-body ar- his office, leaving with more answers than questions. I also appreciate the fact that he has always had a friendly attitude towards me. I have enjoyed interacting with Dr. Kapania, whose cheerful attitude and perpective on life and research is very similar to mine. I would like to acknowledge the contribution of Dr. Grossman to the team in the field of numerical calculations and his desire of improving the life of the graduate students by forming the Graduate Advisory Committee. Dr. Raj deserves a lot of thanks for providing me with useful advice throughout this project despite his busy schedule. I appreciate the fact that he has always been interested in knowing more about the evolution of my research work and career. The "virtual" presence of Dr. Haftka during our weekly meetings has been very beneficial because of his ability to foresee difficulties and to get the team members to not lose sight of the big picture.

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Section: Subsonic Flowmentioning

confidence: 99%

“…However, past a certain point in fillet size, the flow characteristics deteriorate significantly. Devenport et al [21] measured the turbulent flow around an idealized wing-body junction. A fillet of uniform radius was wrapped around the base of the wing.…”

Section: Subsonic Flowmentioning

confidence: 99%

Numerical prediction of the interference drag of a streamlined strut intersecting a surface in transonic flow

Tetrault

2000

38th Aerospace Sciences Meeting and Exhibit

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“…These experiments were very similar to those performed for the junction fillet mentioned previously [11]. The strake was designed to smooth the adverse pressure gradient at the leading edge of the wing (see Figure 1.8).…”

Section: Controlling Junction Flowmentioning

confidence: 61%

“…The low-pressure side vortex leg is pushed further away from the wing, and the high-pressure side vortex strength is increased [10,11].…”

Section: Flow Parametersmentioning

confidence: 99%

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Parametric Exploration of Wing–Body Junction Flow Using Computational Fluid Dynamics

Hinson

Hoffmann

2015

Journal of Aircraft

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An experimental study of a turbulent wing-body junction and wake flow

Fleming

Simpson

Cowling

et al. 1993

Experiments in Fluids

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Extensive measurements were conducted in an incom-X v pressible turbulent flow around the wing-body junction formed by Y a 3:2 semi-elliptic nose/NACA 0020 tail section and a fiat plate.Y + Mean and fluctuating velocity measurements were performed adja-Z cent to the wing and up to 11.56 chord lengths downstream. The 6 appendage far wake region was subjected to an adverse pressure 6" gradient. The authors' results show that the characteristic horseshoe 0 vortex flow structure is elliptically shaped, with 0 (W)/OY forming # the primary component of the streamwise vorticity. The streamwise 0 development of the flow distortions and vorticity distributions is Zw highly dependent on the geometry-induced pressure gradients and f2 x resulting flow skewing directions.The primary goal of this research was to determine the effects of Subscript the approach boundary layer characteristics on the junction flow.TC To accomplish this goal, the authors' results were compared to several other junction flow data sets obtained using the same body shape. The trailing vortex leg flow structure was found to scale on T. A parameter known as the momentum deficit factor (MDF = (ReT) 2 (O/T)) was found to correlate the observed trends in mean flow distortion magnitudes and vorticity distribution. Changes in 6IT were seen to affect the distribution of u', with lower ratios producing well defined local turbulence maxima. Increased thinning of the boundary layer near the appendage was also observed for small values of 6/T.

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Effects of a fillet on the flow past a wing body junction

Cited by 13 publications

References 0 publications

Numerical prediction of the interference drag of a streamlined strut intersecting a surface in transonic flow

Numerical prediction of the interference drag of a streamlined strut intersecting a surface in transonic flow

Parametric Exploration of Wing–Body Junction Flow Using Computational Fluid Dynamics

An experimental study of a turbulent wing-body junction and wake flow

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