TY - JOUR
TI - Study on thermal-flow field characteristics in multi-angle deicing jet using phase-field and k-ω turbulence models
AU - Gong Miao
AU - Yan Huaijin
AU - Song Hongyi
JN - Thermal Science
PY - 2026
VL - 30
IS - 3
SP - 1743
EP - 1764
PT - Article
AB - A multi-angle jet model for aircraft deicing under engine-idle conditions was established based on the k-ω turbulence model and introduces the phase-field method to more accurately capture gas-liquid interface behavior. The model’s simulation effectiveness was verified through experiments, and the influence of different jet inclination angles (30°, 45°, 60°) on the wall flow field structure, pressure distribution, and heat transfer performance was systematically analyzed based on the simulation results. The research findings indicate that under the condition of a nozzle Reynolds number of 3.2⋅10⁵, the jet with a 30° inclination angle achieves the optimal comprehensive heat transfer effect on the wall. Its spanwise diffusion range increases by approximately 36 nozzle diameters compared to the 60° case, and the position of the upstream high temperature core region shifts from x/d = –2.5 to x/d = –13.5. Furthermore, the 30° jet also demonstrates better performance in terms of impact pressure and turbulence intensity. This study provides a theoretical basis for optimizing spray parameters in the engine-idle deicing process and has practical significance for improving deicing efficiency and reducing deicing fluid consumption.
DO - 10.2298/TSCI250725195G
ER -