大涡模拟模式研究对流层湍流

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

基金项目: 中国科学院大气物理研究所大气边界层物理与大气化学国家重点实验室(LAPC)资助

STUDY OF TROPOSPHERIC TURBULENCE USING LARGE EDDY MODEL

Department of Environmental Science, Zhongshan University, Guangzhou 510275, China

摘要: 利用三维大涡模拟模式研究不同地面热力状况和风切变对湍流产生的影响,在对流层湍流发展过程中,这两种作用是同时存在的、同时起作用,水平风速的瞬时垂直切变可以在自由大气中激发湍流,但它不能维持很长时间,对流热泡也可以在自由大气中激发湍流,其湍流强度与地面的热通量强度有关。
- 对流层湍流 /
- 大涡模拟
Abstract: A 3-D large eddy model is used to simulate and study the effects of surface thermodynamic conditions and wind shear on turbulence. During the turbulence development in the troposphere,they are co-existent and co-acting. Transient vertical shears of the horizontal wind speed induces turbulence in the free atmosphere but with limited duration; connective thermal cells also intrigue it,which intensifies in association with heat flux on the ground surface.
- troposphere turbulence /
- large eddy simulation

[1]	LEI X E,HAN ZHIWEI,ZHANG MEIGEN.Physical,Chemical,Bilogical Processes and Mathematical Model on Air Pollution[M].Beijing: China Meteorological Press.355.1998.
[2]	王雪梅,雷孝恩,洪钟祥.对流边界大涡模拟[J].中山大学学报.1998,37: 118-121.
[3]	MO ENG C H,SULLIVAN P,STEVENS B.An entrainmentrate formula for buoyancy-driven cloud-topped PBL[A].12th Symp.on Boundary layer and Turbulence[C].Vancouver,Canada,Amer Meteor Soc,1997.208-209.