Real-time Simulation of Large Aircraft Flying Through Microburst Wind Field

Gao, Zhenxing; Gu, Hong; Liu, Hui

doi:10.1016/s1000-9361(08)60126-0

Cited by 20 publications

(14 citation statements)

References 8 publications

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“…The microburst's wind components are characterized by a strong downdraft from the thunderstorm which spreads out near the ground to produce a severe wind shear [39], as illustrated in Fig. 21(a).…”

Section: Windshear Scenariomentioning

confidence: 99%

“…The downward wind component will increase the wing's angle of attack getting closer or even surpassing their stall value. Subsequently, when flying out of the downdraft, a combined side-and tailwind will build up, which reduces the airspeed of the aircraft rapidly, provoking a significant decrease in lift force and an uncommanded pitch down motion [38][39][40]. The simulated wind components are illustrated in Fig.…”

Section: Windshear Scenariomentioning

confidence: 99%

See 1 more Smart Citation

Design and Piloted Simulator Evaluation of Adaptive Safe Flight Envelope Protection Algorithm

Lombaerts

Looye

Ellerbroek

et al. 2016

AIAA Guidance, Navigation, and Control Conference

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This paper discusses the design and evaluation of an efficient safe flight envelope protection method, for keeping an augmented aircraft with manual flight control laws within the safe envelope bounds. This flight envelope is estimated adaptively, so that configuration changes and possible failures can be taken into account. The updated information of the safe envelope is used in the flight control laws to prevent loss of control in flight. It has been found that a control architecture involving separate pilot command filtering is particularly well suited to incorporate these adaptive protections. Moreover, haptic feedback to the pilot controls can be included as well, based on the same adaptive bounds. This has the potential to further increase the flight crew awareness about the risk of losing control in flight. These algorithms have been evaluated in the Simona Research Simulator at Delft University of Technology, to investigate the impact on the awareness of the crew. Commercial airline crews flew multiple challenging approach and landing scenarios in a relevant simulated environment. Results show that the algorithms support the flight crew significantly. They contribute to 'care-free' flying and to avoiding loss of control in flight.

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Section: Windshear Scenariomentioning

confidence: 99%

Section: Windshear Scenariomentioning

confidence: 99%

Design and Piloted Simulator Evaluation of Adaptive Safe Flight Envelope Protection Algorithm

Lombaerts

Looye

Ellerbroek

et al. 2016

AIAA Guidance, Navigation, and Control Conference

View full text Add to dashboard Cite

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“…Vortex-Ring Principle. The principle of the vortex-ring model is briefly illuminated here based on [15]. In fact, the vertical component of the wind velocity must be zero on the ground boundary.…”

Section: Modeling Of Microburst Wind Fieldmentioning

confidence: 99%

“…Next, we explain the influence of wind gradients upon the angular rates and motion of an aircraft. Then, a microburst wind field is built according to [4,15] and included in setting up a simulation platform. The results of experiments are used to explain the differences between the wind influence mechanisms in the two forms of equations.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of China C Series Large Aircraft with Microburst

Wang

Song²,

Wang³

2016

Mathematical Problems in Engineering

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To simulate and analyze a large aircraft with severe wind shear, nonlinear equations for a rigid aircraft under various wind conditions were designed. In this paper, a double-vortex-ring method is adopted to generate a three-dimensional microburst wind field. This model incorporates a flight dynamics module and three flight simulations based on various forms of nonlinear equations. In addition, four primary wind gradients are considered to compute the aerodynamic coefficients. In simulation experiments with a China C series large aircraft, equations using air-relative velocities and inertial velocities are compared and analyzed. Although the nonlinear equations derived using the air-relative velocities should be identical to those using the inertial velocities, the results show that the latter are more accurate in practice because the former bring error into the simulation when estimating the acceleration induced by the wind field.

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“…For all the developments in windshield and turbulence warning systems at airports, the result of many studies have shown that the best course of action for a pilot to take is to completely avoid wind shear (Albright, 2015). The outburst dimensions are less than 4 km; the aircraft experiences a dangerous environment during take-off and landing because of the microburst effect (Zhenxing et al , 2009).…”

Section: Introductionmentioning

confidence: 99%

Numerical study of unmanned aerial vehicle (UAV) in dry microburst environment using large eddy simulation (LES) model

Somashekar

2022

AEAT

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Purpose In a microburst wind, the profiles and characteristics are significantly different from those of normal boundary layer winds. The objective of this work is to study the microburst effect on the performance of aircraft for providing guidelines to frame escape strategies. Design/methodology/approach Large eddy simulation model is used to study the effect of microburst by simulating the actual physical process of microburst-generated downdraft environment over the unmanned aerial vehicle. In this work, an attempt has been made to simulate the dry microburst (microburst not accompanied by rain) numerically using the impinging jet model to explore the effect of microburst at 12° angle of attack for flight take-off condition with a Mach number 0.04. Findings The numerical results revealed the aerodynamic performance loss of an aircraft in the microburst-generated downdraft during take-off condition quantitatively. This could be a more valuable information to the aviation industry. The authors believe that the results shown in this paper will be useful for the designers of aircraft. This will also help train the pilots to control the airplanes in a microburst environment. Practical implications Severe thunderstorms are significant weather phenomena that have a significant impact on various facets of national activity, including civil and defence operations, specifically aviation, space vehicle launch and agriculture, in addition to their potential to cause damage to life and property. Originality/value The maximum percentage of pressure increases on the upper surface of the aircraft between 2 and 7 s is 99.86% under the microburst-generated downdraft condition. The flight escape maneuver could be initiated, before increasing the pressure on the upper surface of the aircraft. The aircraft flies with high airspeed through the microburst environment, where the microburst-generated downdraft is most severe.

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Real-time Simulation of Large Aircraft Flying Through Microburst Wind Field

Cited by 20 publications

References 8 publications

Design and Piloted Simulator Evaluation of Adaptive Safe Flight Envelope Protection Algorithm

Design and Piloted Simulator Evaluation of Adaptive Safe Flight Envelope Protection Algorithm

Modeling and Simulation of China C Series Large Aircraft with Microburst

Numerical study of unmanned aerial vehicle (UAV) in dry microburst environment using large eddy simulation (LES) model

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