实验流体力学2012，Vol.26Issue(2)：23-28,6.
电热除冰的热力耦合特性及其对冰层的影响研究
Study on coupled thermo-mechanical characteristic and its effects during the process of electrothermal deicing
摘要
Abstract
With computational and experimental method combined, the coupled thermo-mechanical characteristic in the ice is studied during the process of electrothermal deicing. The characteristics of interface normal and shear stress distributions between ice and airfoil are studied under different heat fluxes coupled with aerodynamic loading conditions by finite element method in this paper. The differences of normal and shear stress distributions between heated and unheated conditions are analyzed. The effects of heat flux on maximum principal stress are investigated. The study shows that coupled thermo-mechanical characteristic leads to remarkable increasing of stress in the ice under the condition of electrothermal deicing. Consequently, it results in crack in the ice and speeds up ice shedding before ice layer at surface begins to melt. The conclusion is validated by test for principle. The study will provide the technical support for the development of new deicing technique.关键词
电热除冰/热力耦合/原理性实验/气动力载荷/破裂Key words
electrothermal deicing/coupled thermo-mechanics/ test for principle/aerodynamic loading/ crack分类
航空航天引用本文复制引用
肖春华,林贵平,桂业伟,肖京平..电热除冰的热力耦合特性及其对冰层的影响研究[J].实验流体力学,2012,26(2):23-28,6.基金项目
国家自然科学基金委员会与中国民用航空局联合资助项目(批准号:61179075) （批准号:61179075）
