| Application of Linear Thermodynamics to the Atmospheric System.Part Ⅱ: Exemplification of Linear Phenomenological Relations in the Atmospheric System |
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| 作者姓名： | Hu Yinqiao |
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| 作者单位： | Hu Yinqiao Cold and Arid Regions Environment and Engineering Institute，Chinese Academy of Sciences，Lanzhou 730000 Resource Environment College of Lanzhou University，Lanzhou 730000 |
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| 摘 要： | 将边界层相似性理论同线性热力学理论结合，间接地以观测实验事实证明大气边界层内线性唯象关系是成立的，而且线性湍流输送系数同相应的线性唯象系数成正比关系。但实验事实表明，大涡对流的混合层线性唯象系数成正比关系。但实验事实表明，大涡对流的混合层线性唯象关系是不成立的，混合层内湍流输送过程是一种强的非线性过程。所以，对流边界层是一种远离平衡态非线性区的热力学状态。地转风和热成风是一种大气系统特有的动力过程和热力过程和交叉耦合现象，这是大气系统交叉耦合现象的一个实际例证。
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| 关 键 词： | 大气系统 线性热力学 线性唯象关系 湍流输送系数 大气边界层 |
| 收稿时间： | 12 April 2001 |
Application of linear thermodynamics to the atmospheric system. Part II: exemplification of linear phenomenological relations in the atmospheric system |
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| Hu Yinqiao.Application of linear thermodynamics to the atmospheric system. Part II: exemplification of linear phenomenological relations in the atmospheric system[J].Advances in Atmospheric Sciences,2002,19(5):767-776. |
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| Authors: | Hu Yinqiao |
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| Institution: | Coldand Aril Re gion s Environmenl and Engineering lnstitle, Chinese Academy of Sciences Lanzhou 730000;Resource Environment College of Lanzhou Unicerity, Lanzhou 730000 |
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| Abstract: | The linear phenomenological relations in the atmospheric boundary layer are proved indirectly usingobservational facts to combine linear thermodynamic theory and similarity theory in the boundary layer.Furthermore, it is proved that the turbulent transport coefficients are in proportion to the correspondinglinear phenomenological coefficients. But the experimental facts show that the linear phenomenological rela-tions are not tenable in the atmospheric mixing layer because the turbalent transport process is an intensenon-linear process in the mixing layer. Hence the convection boundary layer is a thermodynamic state in anon-linear region far from the equilibrium state. The geostrophic wind is a special cross-coupling phenom-enon between the dynamic process and the thermodynamic process in the atmospheric system. It is a practi-cal exemplification ofa cross-coupling phenomenon in the atmospheric system. |
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| Keywords: | atmospheric system linear thermodynamics linear phenomenological relations turbulent transportation coefficient atmospheric boundary layer |
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