一维大气边界层二阶闭合的有限元数值模式 I.对流边界层模拟  

A One-Dimensional Finite Element Model with Two-Order Closure Scheme Simulating the Atmospheric Boundary Layer Part I: Convective Boundary Layer

作　　者：郭振海[1] 陈重[1] 张宏升[1] 陈家宜[1] 张霭琛[1] 

机构地区：[1]北京大学地球物理系,北京100871

出　　处：《大气科学》1999年第6期733-744,共12页Chinese Journal of Atmospheric Sciences

基　　金：国家自然科学基金

摘　　要：利用有限元法用于二阶湍流闭合大气对流边界层模式，并模拟了Ｗａｎｇａｒａ 试验３３ 天的对流边界层的发展过程，计算结果表明，该模式能真实的模拟出对流边界层的发展过程，并且准确地反映对流边界层中湍流扩散和输送过程。A finite element model with two-order closure simulating the atmospheric boundary layer has been developed and has simulated the convective boundary layer evolution process of Wangara Day 33. The result shows that the model can really simulate not only the evolution process of convective boundary layer but also the process of turbulent diffusing and tranferring.

关 键 词：二阶湍流闭合 有限元 大气边界层 数值模式 

分 类 号：P421.31[天文地球—大气科学及气象学]