Wind Tunnel Tests of Damage to the Tu-154M Aircraft Wing

Krzysiak, Andrzej

doi:10.1061/(asce)as.1943-5525.0001087

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Its main conclusion is that an explosion on board of the Polish Tu 154M plane was the most probable cause of the crash. In the last few years, several papers addressing problems connected with the crash were published by the Conference participants in international journals [3][4][5][6]. The authors discuss information from the Terrain Awareness and Warning System (TAWS) installed on the crashed plane, the influence of the damage of the aircraft wing on its aerodynamic performance and the forms of damage of the aircraft components in their final state.…”

Section: Introductionmentioning

confidence: 99%

Mass spectrometry of the soot left after ethylene oxide explosion answers some questions on the crash of Polish Air Force Flight 101

Wójcik

2021

Journal of Forensic Sciences

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The Polish TU 154M plane, Polish Air Force Flight 101, had crashed near Smolensk on 10th of April 2010. The crash was investigated by The Interstate Aviation Committee, whose conclusions were questioned by a number of Polish scientists. The cause of the crash still appears to be incompletely documented and requires additional evidence. In this paper, investigations of a solid material eluted from a piece of cloth of one of the victims of the crash are described. High resolution mass spectrometry was applied to analyze the soot left after controlled ethylene oxide (EO) explosions, performed under different conditions. These

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Section: Introductionmentioning

confidence: 99%

Mass spectrometry of the soot left after ethylene oxide explosion answers some questions on the crash of Polish Air Force Flight 101

Wójcik

2021

Journal of Forensic Sciences

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“…Jørgensen (2014) presented CFD study for the aerodynamic characteristic of a wing-damaged full-scale Tu-154M and its critical speed for landing. Krzysiak (2019) generated wind tunnel test at the Institute of Aviation (IL) in Poland using a 1:40 scale model of the 37.55 meters spanned Tu-154M. Nevertheless, Jorgensen’s work was not validated by the wind tunnel data, and Krzysiak’s paper only investigated the influence of damage by using wind tunnel method, so there is some disconnect between both studies.…”

Section: Introductionmentioning

confidence: 99%

“…Wind tunnel test results with 1:100 scale model were correlated using CFD simulations. Similar wind tunnel test data generated by the Institute of Aviation (IL) in Poland (Krzysiak, 2019) using 1:40 scale of the same aircraft was also used for comparison. The CFD calculations were also validated by the flight test data and wind tunnel test results from this study and independent work by IL.…”

Section: Introductionmentioning

confidence: 99%

Assessment on aerodynamic degradation for wing-damaged transport aircraft

Ding

Zeng

Binienda

2020

AEAT

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Purpose Wingtip loss is an existing type of transport aircraft hazard which is a real threat to flight safety caused by a missile strike, underwing engine explosion or impact with obstructions when performing near-ground operations. The primary effect of the wingtip loss is an asymmetric rolling moment, which may result in the fatal loss of control for the aircraft. This study aims to assess whether aerodynamic degradation will cause a wing-damaged transport aircraft to lose its balance under a certain level of wing damage and if a pilot can compensate for the loss of aerodynamic force and regain the balance of the aircraft. Design/methodology/approach In this paper, experimental and numerical studies were conducted to investigate the aerodynamic characteristics of a wingtip-lost transport aircraft in landing configuration. Various levels of wing damages including wingtip, slat and flap loss were considered. The numerical simulations were performed with ANSYS Fluent. The computational fluid dynamics calculation was validated by wind tunnel tests. Findings The aerodynamic performance of the aircraft with wing-damaged condition was presented. It was revealed that the wingtip loss leads to an asymmetric rolling moment and a reduction of the lift force, which affects the balance of the transport aircraft. The methods to compensate for the lift force and the asymmetric rolling moment were investigated for a safe landing. The lateral balance cannot be maintained in cases with serious damage on the wing (larger than 53% of the semi-span) or moderate damage on the wing with loss of slats and flaps. Originality/value The nonlinear results indicate the importance of aerodynamic assessment for the sake of training pilots to properly handle the hazard situation and explore the critical facts leading to the air crash.

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