水利学报2023，Vol.54Issue(11)：1277-1286,10.DOI:10.13243/j.cnki.slxb.20230323
冰盖前缘冰块稳定性研究进展
Research progress on the ice blocks stability in front of ice cover
摘要
Abstract
The stability of ice in the front of ice cover or ice jam is an important basis for the study of ice jam accu-mulation.Similarly,it is an essential part of any mathematical model predicting or forecasting ice jam accumula-tion.A review of the classic literature on submergence of ice blocks,both domestically and internationally,has been conducted,and the study ways on the critical conditions for ice block submergence has been roughly catego-rized into three aspects:prototype observation,theoretical analysis,and experimental study.Whether for engi-neering applications or theoretical research,the critical Froude number is commonly used to determine ice block submergence.Through analysis and discussion of the deficiencies in existing research,the following main conclu-sions and future research directions have been drawn:the critical Froude number is influenced by multiple factors,such as water flow,meteorology,and the condition of the ice blocks themselves,thus exhibiting a range of values with specific regional characteristics.The existing research on ice block submergence has largely overlooked the effect of ice block width,which directly affects the accurate representation of submergence moment and anti-over-turning moment.The study of pressure and distribution changes on the bottom surface of ice blocks during submer-gence is of great importance,and there is still much room for improvement in the existing research.关键词
下潜/临界条件/弗劳德数/压力变化/冰块Key words
submergence/critical condition/Froude number/pressure variation/iceblock分类
建筑与水利引用本文复制引用
王军,桑连升,宋飞虎,程铁杰..冰盖前缘冰块稳定性研究进展[J].水利学报,2023,54(11):1277-1286,10.基金项目
国家重点研发计划项目(2022YFC3202502) （2022YFC3202502）
国家自然科学基金联合基金项目(U2243239) （U2243239）
