A technique to predict the aerodynamic effects of battle damage on an aircraft’s wing

Pickhaver, T.W.; Render, P. M.

doi:10.1017/s0001924000004267

Cited by 4 publications

(2 citation statements)

References 14 publications

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“…If air speed is constant, three main variables determine the jet strength; damage size, damage location and incidence angle. 7 The weak jet typically occurs at low incidence angles or with small holes, when there is a relatively small pressure difference between the pressure and suction surface of the wing. The strong jet case occurs at higher incidences, when the pressure difference is high between the pressure and suction surfaces, for smaller holes and at all incidence angles for very large holes.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Single Hole Simulated Battle Damage on a Wing Using Particle Image Velocimetry

Almond

Render

Walker

2015

33rd AIAA Applied Aerodynamics Conference

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Section: Introductionmentioning

confidence: 99%

Analysis of Single Hole Simulated Battle Damage on a Wing Using Particle Image Velocimetry

Almond

Render

Walker

2015

33rd AIAA Applied Aerodynamics Conference

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“…Previous work on battle damage has concentrated on balance measurements to determine lift and drag increments (e.g., Pickhaver and Render (9) ) with only limited flowfield information available from surface flow visualisation, as in Irwin and Render (10) . This has provided a limited understanding of the flowfield and flow mechanisms, hence the need for more in-depth studies involving PIV.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the flowfield induced by simulated battle damage

et al. 2017

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Particle Image Velocimetry (PIV) has been used to study the complex flowfield created by simulated battle damage to a two-dimensional wing. Computational Fluid Dynamics (CFD) predictions have also been used for validation of internal cavity flow. Two damage cases were selected for the study; both cases were simulated using a single hole with diameters equal to 20% and 40% of the chord, located at the wing half-chord. Wind-tunnel tests were conducted at a Reynolds number of 500,000 over a range of incidences from 0 to 10° with two-component PIV measurements made on three chordwise and three spanwise planes. The PIV data were analysed and compared to CFD data of the same damage cases. The PIV data have shown lower velocity ratios and lower vorticity in the jet compared to past Jet in Cross-Flow experiments and CFD was used to describe the flow features inside the cavity of the wing. It was seen that the wing cavity has large effects on the external flow features, particularly for the 20% damage case. Finally, the flow field data have been related to force balance data. At higher incidence angles, the larger force coefficient increments in both lift and drag can be attributed to the larger wakes and higher jet strengths.

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Simulation on the dynamic stability derivatives of battle-structure-damaged aircrafts

2021

Defence Technology

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A technique to predict the aerodynamic effects of battle damage on an aircraft’s wing

Cited by 4 publications

References 14 publications

Analysis of Single Hole Simulated Battle Damage on a Wing Using Particle Image Velocimetry

Analysis of Single Hole Simulated Battle Damage on a Wing Using Particle Image Velocimetry

Investigation of the flowfield induced by simulated battle damage

Simulation on the dynamic stability derivatives of battle-structure-damaged aircrafts

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