01.1 - Aircraft Design and Integrated System (Basics and Theory)
TRANSIENT SIMULATION CALCULATION FOR ELECTRIC THERMAL ANTI-ICING PERFORMANCE OF COMPOSITE WING IN ICING ENVIRONMENT
Z. Dong¹, X. Guo¹, W. Dong¹, P. Wang¹; ¹Shanghai Jiaotong University, China
This article focuses on the composite material electric anti-icing technology. With the consideration of external water evaporation, the surface ice surface undergoes freezing, semi-melting (dynamic equilibrium of the surface), and melting processes during the electric heating process. In a one-dimensional process, composite materials can be simplified into several interlayers, assuming that the physical properties in the horizontal direction are the same, the characteristic length in the horizontal direction far exceeds that in the vertical direction, and the boundary conditions are the third type of boundary conditions on both sides; For two-dimensional processes, more information is needed, including adiabatic side boundary conditions and different convective parameters in the outer surface flow field. For the heat flux towards the surface and inside during the heating process, one method is that the explict format can be used to assume the initial condition time iteration, and on the other hand, the heat flux condition can be used for iteration. Due to the complexity of the two-dimensional calculation process, we can also calculate theoretical solutions for each layer and use numerical iterations to significantly reduce computational complexity, thereby obtaining data for optimization. Optimization includes material physical properties and heat flow time distribution patterns to achieve the optimal anti-icing effect.