淡水冰导温系数参数识别的应用  

Application of parameter identification for thermal diffusivity of fresh ice

作　　者：徐慧[1] 白乙拉[1] 李志军[2] 王婉歆[1] 

机构地区：[1]渤海大学数理学院,辽宁锦州121013 [2]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024

出　　处：《渤海大学学报（自然科学版）》2012年第2期106-109,共4页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金(No:40806075);辽宁省自然科学基金(No:20102003)

摘　　要：利用识别得到的淡水冰导温系数依赖于冰温的变化关系式,模拟山西太原汾河二库淡水冰温度场的变化情况.使用导温系数经验常数模拟同一水库温度场的变化情况.经过比较得出:依赖于冰温变化的淡水冰导温系数更符合实际.A numerical simulation is made of fresh ice temperature changes in Fenhe No. 2 Reservoir located in Taiyuan City, Shanxi Province, in accordance with the relational expression that thermal diffusivity of fresh ice relies on ice temperature. Temperature changes are also simulated in the same reservoir by using the constant thermal diffusivity. By comparison, the more effective constant of fresh ice thermal diffusivity is the one that relies on ice temperature changes.

关 键 词：淡水冰 最优控制 数值模拟 

分 类 号：O231.4[理学—运筹学与控制论] O232[理学—数学]