关于大气边界层方程闭合的对比研究

计算物理 ›› 1997, Vol. 14 ›› Issue (6): 823-828.

关于大气边界层方程闭合的对比研究

苗曼倩, 曹鸿, 唐有华

南京大学大气科学系 210093

收稿日期:1997-03-07 出版日期:1997-11-25 发布日期:1997-11-25

A STUDY ON THE CLOSURE SCHEMES COMPARISON OF ATMOSPHERIC BOUNDARY LAYER EQUATIONS

Miao Manqian, Cao Hong, Tang Youhua

Department of Atmospheric Sciences, Nanjing University, 210093

Received:1997-03-07 Online:1997-11-25 Published:1997-11-25

摘要/Abstract

摘要： 采用具有1(1)/(2)阶精度的TKE闭合方案以及适当减少垂直网格层数,使计算量大大减少。模拟结果与观测结果仍很吻合;与3阶闭合结果相比,并无明显降低。该方案提供了改进3维大气模式中PBL参数化精度的可能性。

关键词: 大气边界层, TKE闭合, 对比研究

Abstract: The TKE (Turbulent Kinetic Energy) closure scheme with 1(1)/(2) order precision and the method of reducing vertical layers are used to decrease computing amount. Modelling results agree well with observations. Compared with results of 3 order closure schemes, there is no obvious reduction of precision. This scheme provides the possibility of inducting and improving the precision of PBL parameterization in three dimensional atmospheric models.

Key words: PBL(Planetary Boundary Layer), TKE(Turbulent Kinetic Enery), comparative research

中图分类号:

P42
TB115

苗曼倩, 曹鸿, 唐有华. 关于大气边界层方程闭合的对比研究[J]. 计算物理, 1997, 14(6): 823-828.

Miao Manqian, Cao Hong, Tang Youhua. A STUDY ON THE CLOSURE SCHEMES COMPARISON OF ATMOSPHERIC BOUNDARY LAYER EQUATIONS[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1997, 14(6): 823-828.

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