Performance evaluation of electrothermal anti-icing systems for a rotorcraft engine air intake using a meta model

Jung, Sung-Ki; Raj, L. Prince; Rahimi, Amin; Jeong, Hyun–Cheol; Myong, R.S.

doi:10.1016/j.ast.2020.106174

Cited by 26 publications

(8 citation statements)

References 34 publications

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“…The LOO error is a common tool frequently used in metamodeling application. For instance, Jung et al extensively used the LOO error for anti-icing performance metamodeling for engine intake [46].…”

Section: Uncertain Parameter Sampling and Metamodelmentioning

confidence: 99%

Sensitivity Study of Ice Accretion Simulation to Roughness Thermal Correction Model

2021

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The effects of atmospheric icing can be anticipated by Computational Fluid Dynamics (CFD). Past studies show that the convective heat transfer influences the ice accretion and is itself a function of surface roughness. Uncertainty quantification (UQ) could help quantify the impact of surface roughness parameters on the reliability of ice accretion prediction. This paper aims to quantify ice accretion uncertainties and identify the key surface roughness correction parameters contributing the most to the uncertainties in a Reynolds-Averaged Navier-Stokes (RANS) formulation. Ice accretion simulations over a rough flat plate using two thermal correction models are used to construct a RANS database. Non-Intrusive Polynomial Chaos Expansion (NIPCE) metamodels are developed to predict the convective heat transfer and icing characteristics of the RANS database. The metamodels allow for the computation of the 95% confidence intervals of the output probability distribution (PDF) and of the sensitivity indexes of the roughness parameters according to their level of influence on the outputs. For one of the thermal correction models, the most influential parameter is the roughness height, whereas for the second model it is the surface correction coefficient. In addition, the uncertainty on the freestream temperature has a minor impact on the ice accretion sensitivity compared to the uncertainty on the roughness parameters.

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Section: Uncertain Parameter Sampling and Metamodelmentioning

confidence: 99%

Sensitivity Study of Ice Accretion Simulation to Roughness Thermal Correction Model

2021

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“…Previous work [4][5][6][7] has been done in solving the problems of aircraft icing. Once ice has formed, a common removal technique is the hot-air-based anti-icing system.…”

Section: Introductionmentioning

confidence: 99%

“…Another common de-icing technique is the electric-thermal anti-icing system. Jung et al [6] developed a meta-model for icing and accurately evaluated an electric heating anti-icing system on two-dimensional airfoil and intakes of rotor engines. Gutiérrez et al [7] used a liquid film model and a robust evaporation model to solve energy conservation laws and compute aerodynamic quantities; the results agree well with experimental results.…”

Section: Introductionmentioning

confidence: 99%

Influence of Spinner Shape on Droplet Impact over Rotating Spinners

et al. 2023

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Droplet impact affects water collection, which is the key to investigating the icing process on an aero-engine spinner. Different from a stationary spinner, droplet impact is affected by Coriolis acceleration and centrifugal acceleration on rotating aero-engine spinners, showing different impact dynamics. Based on the Eulerian method, using the rotating coordinate system we numerically investigated droplet impact characteristics on three different shapes of aero-engine spinners using ANSYS Fluent. The results indicate that the impact area covered all the windward surface on the conical spinner, and only covered the windward surface prior to the impingement limit of the elliptical spinner and the coniptical spinner. The sensitivity of water collection to inflow velocity declined in the order of coniptical the spinner, the elliptical spinner, and the conical spinner. In addition, the elliptical region could effectively improve aerodynamic performance, as shown in a lower total pressure loss through the spinner. This work is relevant to the anti-icing system of a rotating aero-engine spinner.

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“…1,2 This makes the aircraft difficult to control, and can even cause aircraft damage and passenger death. 3,4 Therefore, it is necessary to install an efficient and reasonable anti-icing system to ensure flight safety. [5][6][7] The methods employed in such anti-icing technology can be divided into active de-icing 8 and passive de-icing.…”

Section: Introductionmentioning

confidence: 99%

Dynamic simulation of aircraft electro-impulse de-icing using bond-based peridynamics

Zhang

Hou

Ji³

et al. 2022

Advances in Mechanical Engineering

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Electro-impulse de-icing is a lightweight type of mechanical de-icing system that consumes little energy, provides high reliability, and offers wide application prospects. In this study, the bond-based peridynamics theory was used to simulate the dynamic damage process and evolution law of aircraft electro-impulse de-icing. The ice layer was simplified as a brittle material that satisfies the linear elastic constitutive relation. A numerical analysis model of the ice layer, aircraft skin substrate, and their interface was established to simulate the dynamic responses under a high strain rate. Considering the anisotropy of ice adhesion on the substrate, the interfacial bonds were described as shear bonds and tensile bonds, and the critical elongations of the two were derived. The tensile and shear capacities of the ice on the substrate were then simulated using these critical elongations, and the peeling rates of single ice particles and interfacial ice layers were taken as indexes describing the efficacy of electro-impulse de-icing. The process of electro-impulse de-icing was then analyzed for an aluminum substrate with two adjacent clamped edges. Finally, the results of the peridynamic simulation were compared with those of existing experiments and finite element models to verify the effectiveness of the peridynamic approach.

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Performance evaluation of electrothermal anti-icing systems for a rotorcraft engine air intake using a meta model

Cited by 26 publications

References 34 publications

Sensitivity Study of Ice Accretion Simulation to Roughness Thermal Correction Model

Sensitivity Study of Ice Accretion Simulation to Roughness Thermal Correction Model

Influence of Spinner Shape on Droplet Impact over Rotating Spinners

Dynamic simulation of aircraft electro-impulse de-icing using bond-based peridynamics

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