CHAOS IN INTERNAL-WAVE DYNAMICS AND ONSET OF ATMOSPHERIC TURBULENCE

来源 :Science in China,Ser.B | 被引量 : 0次 | 上传用户:lzh23
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The chaos can appear in internalowave dynamics (i. e. the deterministic aperiodic flow). The chaos are the results of the forcing factor and dissipative factor. The chaos do not appear because of the too weak dissipative factor when Prandtl number σ=1 in the Lorenz equation. The concept of chaos may explain the onset of turbulence.We argue that the chaotic motion can appear when the velocity shear damper is added to Lorenz equation for the Plandtl number σ=0.7. The atmosphere is stable at night. But we add a forcing heating source to the thermodynamic equation, and the chaos can appear similarly. The chaos can appear in internalowave dynamics (ie the deterministic aperiodic flow). The chaos do not appear because of the too weak dissipative factor when Prandtl number σ = 1 in the Lorenz equation . The concept of chaos may explain the onset of turbulence. We argue that the chaotic motion can appear when the velocity shear damper is added to Lorenz equation for the Plandtl number σ = 0.7. The atmosphere is stable at night. But we add a forcing heating source to the thermodynamic equation, and the chaos can appear similarly.
其他文献
本文分析了东亚中纬度经向风的变化与东太平洋海温的关系。指出埃尔—尼诺发生前,东亚中纬度总出现一段时间加强的北风。由此造成冷空气南下,使得我国在埃尔—尼诺发生前出现
一、要求表层海水温度的观测精度:±0.5℃表层海水温度的观测深度:0.5米海区范围:北纬28°~32°,由东海沿岸伸到东经124°的海域定位精度:2海里要求系统有快速进行资料处理的
The current elements of the Kuroshio in the East China Sea are analysed and discussed using the temperature-salinity and GEK data of the PN section obtained du
一季度企业家信心指数140.6    全国企业景气调查结果显示,一季度企业家信心指数为140.6,继续置于景气高位并与上季度持平。调查显示,有56.0%的企业家对2008年所在行业的总体运行状况持乐观态度;61.1%的企业家认为2008年企业生产经营保持良好,表明多数企业家对当前及未来宏观经济发展仍保持良好的信心与预期。    我国商品贸易出口额跃居世界第二    世界贸易组织(WTO)4月24日
杭州湾北邻长江口,南近北仑港——我国最大深水港;钱塘江是浙江第一大河,上游直通安徽、江西境内。故开发钱塘江航运,可分流上海港货物,减轻有关铁路、公路压力,扩大宁波港
A system of linearized equations which describe the motion in the tropical boundary layer and their solutions are given in this paper. If the interaction betwe
A series of new bis(allyleyclopentadienyl) and bis(2-butenylcyelopentadienyl) dichlorides of titanium, zirconium and hafnium have been synthesized by reacting
高职英语任务型教学研究主题主要集中于模式构建、实践应用、与信息技术融合等几方面。有鉴于已有研究成果取得的成绩和存在的不足,今后需要从构建高职特色英语任务型教学研
利用经验正交函数方法,分析了1961—1974年期间,西太平洋热带海面总热量交换的分布情况及其年际变化。分析结果表明,西太平洋热带地区海-气热量交换,存在着一种与El Ni(?)o/S
看过今年的CES2008大展,最大的感慨不是科技发展多么迅速,而是展会上这些缺乏新意的产品,没有一款能够改变人们的生活。不过价格相信哪一样都不会便宜,在所有产品上你都能找