摘要
建立了电热除冰系统矩形微段的二维简化物理模型,采用焓法模型建立相变导热问题的微分控制方程,用控制容积法对该模型的控制方程及其边界、初始条件进行离散,使用块修正技术对原有的离散方程组的求解方法进行了改进,得到各个时刻的温度分布及冰的融解情况.计算结果与文献实验结果吻合,验证了改进的算法和程序的正确性.并计算分析了时间步长的选择、网格的划分对计算结果的影响.
discretize the governing equations, as well as initial and boundary conditions. The block-cor- rection technique was used to improve the solving of the difference equations system. Com- parison was made with previous studies of foreign paper and excellent agreement was achieved, documenting the validity of the improved numerical codes. The effects of time step and grid on the results of the simulation were analyzed.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2008年第10期1753-1758,共6页
Journal of Aerospace Power
关键词
电热除冰
数值仿真
焓法
块修正技术
electrothermal de-icing
numerical simulation
enthalpy method
block-correction technique
