Hybrid Reynolds-Averaged Navier–Stokes/Large-Eddy Simulation Models for Flow Around an Iced Wing

Alam, Mohammad Faridul; Thompson, David S.; Walters, D. Keith

doi:10.2514/1.c032678

Cited by 35 publications

(7 citation statements)

References 30 publications

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“…Under horn ice condition, the flow exhibits shear layer generating, instability appearing, well-defined tubular geometrical forming, and finally twist around in all directions. This phenomenon was also obtained by Alam et al 34 and Zhang et al 35 in their former works. Simultaneously, under ridge ice condition, the shear-layer instability appears earlier, whereas it induces more intense but smaller vortex pairing motions.…”

Section: Resultssupporting

confidence: 81%

Study on vortex shedding mode on the wake of horn/ridge ice contamination under high-Reynolds conditions

Zhang

Liu

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part G:

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This paper studied the unsteadiness of vortex motion produced by a three-dimensional wing section with horn/ridge ice contamination. Using improved delayed detached eddy simulation method, multi-scale vortex and their associated flow structures were successfully captured. Results have shown a diversity of unsteadiness scales at different time series, including shear layer instability, vortex pairing, co-rotating and breaking up. Proper orthogonal decomposition was then introduced to extract the characteristic vortex shedding modes with scheduling the eigenvalues λi from large to small. The dominate and secondary proper orthogonal decomposition modes under horn ice condition were displayed, which could be illustrated as fluctuations near recirculation zone, and large-scale vortex shedding/reattaching motion, respectively. The proper orthogonal decomposition modal characteristics for ridge ice showed that vortex scales varied from large to small. The trajectory of large-scale vortex reattaching and co-rotating exist simultaneously with the pressure peak and recover, which also verified the association of proper orthogonal decomposition modes with different scales of vortices. Future works would be presented on demonstration of the complex structures and the dynamic features in such flow.

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Section: Resultssupporting

confidence: 81%

Study on vortex shedding mode on the wake of horn/ridge ice contamination under high-Reynolds conditions

Zhang

Liu

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part G:

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“…These experiments led to the establishing of a database including a large number of ice shapes that can accrete on aircraft wings in different operating conditions [16][17][18][19]. The comparison of numerical predictions against observations allows for model testing and for their fine-tuning [20][21][22], including the investigation of wind tunnel effects on ice accretion experiments [23] and the investigation of the aerodynamics of a swept wing with leading-edge ice accretion [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Modeling In-Flight Ice Accretion Under Uncertain Conditions

Gori¹,

Congedo²,

Maître

et al. 2022

Journal of Aircraft

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…In severe cases, it may even lead to losing control of the aircraft. 3 . In recent years, many serious flight accidents have been caused by icing 4 .…”

Section: Introductionmentioning

confidence: 99%

The optimization method of wing ice shape regulation based on flight dynamics characteristics

Dou

Dong

et al. 2022

Sci Rep

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Ice on aircraft wing changes the aircraft aerodynamic shape, and has negative effects on flight dynamic characteristics, seriously threatening flight safety. Plasma ice shape regulation is a new de-icing method. Plasma actuator produces an apparent thermal effect, which is designed to dissolve the continuous ice into intermittent ice pieces. How to achieve the optimal regulation ice shape to improve the flight dynamics characteristics under icing conditions is a technical problem restricting the application of this method. A simulation ice shape based on previous ice tunnel experiments and a scale model of swept wing were established. The aerodynamic parameters of no ice, full ice, and two regulation ice schemes were obtained based on wind tunnel. Six degrees of freedom flight dynamics model was established, and flight simulation had been carried out. As the analysis of trim characteristics, dynamic stability, and maneuverability, flight dynamics characteristics were better improved when the ratio of ice width to the mean aerodynamic chord was 0.15. The evaluation method of plasma ice shape regulation schemes was proposed. The proposed method, which can compare and optimize the arrangement of plasma actuators, realized the optimal regulation ice shape on the premise of balancing flight safety and energy consumption.

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Hybrid Reynolds-Averaged Navier–Stokes/Large-Eddy Simulation Models for Flow Around an Iced Wing

Cited by 35 publications

References 30 publications

Study on vortex shedding mode on the wake of horn/ridge ice contamination under high-Reynolds conditions

Study on vortex shedding mode on the wake of horn/ridge ice contamination under high-Reynolds conditions

Modeling In-Flight Ice Accretion Under Uncertain Conditions

The optimization method of wing ice shape regulation based on flight dynamics characteristics

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