Numerical Simulation of Airfoil Electrothermal Anti-Icing System Based on FLUENT

Bu, Xueqin; Hammond, David W.; Lin, Guiping

doi:10.2514/6.2009-4250

Cited by 2 publications

(2 citation statements)

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“…Outside the impinging area, the water film breaks into rivulets, whose mathematical model was also presented. Bu et al [16] established a two-dimensional rivulet model by introducing the minimum energy criteria, and the critical thickness of film breakup was solved.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Water Film Flow and Breakup on Anti-Icing Surface

Zhang,

Liu,

et al. 2024

Aerospace

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The flow and morphological characteristics of liquid water on the icing and anti-icing surfaces of aircraft are closely related to the icing characteristics and anti-icing surface temperature distribution. To predict the flow and breakup characteristics of a water film, a 3D model of continuous water film flow and a model of water film breakup into rivulets on an anti-icing surface were constructed based on the icing model, and the corresponding methods for solving the models were developed. Using the NACA0012 airfoil as a simulation object, the changing characteristics of height and velocity for a continuous water film with time and the morphological characteristics of rivulets formed from the breakup of a continuous water film were simulated numerically. The results indicate that, with an increase in inflow velocity, the time required for the water film to completely cover the surface and reach stability decreases. Downstream in the water droplet impact zone, the calculated values of continuous water film height align well with experiments, as well as the stream height at the continuous water film rupture location with the experimental values. With the reasonable contact angle, the calculation error of the stream width is within 10%.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Water Film Flow and Breakup on Anti-Icing Surface

Zhang,

Liu,

et al. 2024

Aerospace

View full text Add to dashboard Cite

show abstract

“…Therefore, the external air flow is usually decoupled from the conjugate heat transfer solution of the anti-icing system in traditional loose-coupling methods. To stand for the external airflow heat transfer characteristics, the convective heat transfer coefficient is obtained by boundary layer integration methods [23] or CFD methods [24] under isothermal wall boundary conditions, and would not be updated during the coupling iteration of the solid heat conduction and the runback water thermodynamics [22]. However, Morency [25] found that a sharp rise occurred in the convective heat transfer coefficient when non-isothermal temperature increased, and this phenomenon was not captured using constant isothermal surface.…”

Section: Introductionmentioning

confidence: 99%