地形效應(yīng)條件下正壓流體的能量守恒
[Abstract]:Atmospheric energy cycle is an important branch of atmospheric science. Conservation of atmospheric energy has been widely used in oceanography and meteorology. In this paper, we discuss the equations of two kinds of barotropic fluid models. Firstly, we discuss the rotating shallow water model, derive the governing equation with topographic effect, and obtain the conclusion that the equation satisfies the conservation of atmospheric energy (kinetic energy and potential energy, regardless of water vapor). The influence of terrain effect on the conversion and distribution of atmospheric energy is further analyzed. Then, based on the barotropic quasi-geostrophic model, the effects of topography on the atmospheric energy are studied. At first, the barotropic equation system is dimensionless by analyzing the scale method. Furthermore, a suitable small parameter is determined and the zero-order and first-order approximate equations of the dimensionless barotropic equation system are obtained by means of perturbation expansion. Thus, the barotropic quasi-geostrophic vorticity equation under topographical effect is obtained. Finally, the conclusion of energy conservation is derived from the new barotropic quasi-geostrophic vorticity equation. Furthermore, from the point of view of energy, it explains how a series of uniform westerlies are affected by terrain effect.
【學(xué)位授予單位】:內(nèi)蒙古大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類(lèi)號(hào)】:O175
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
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