一个对流边界层大涡模式的建立与调试

本文介绍一个适合于对流边界层的大涡模式的建立及其调试结果。该大涡模式建立过程中注重于计算的节省，同时也强调原理与方法的简单和合理性。模式的调试表明，对于平坦均一地形的情况，模拟可以获得合理的结果。调试同时显示了模式对较低水平分辨率的适用条件，以及模式应用于模拟较大水平范围问题的可能性。

A Large Eddy Simulation Model for Convective Boundary Layer

The method of large eddy simulation (LES) is an important numerical method for studying phenomena in the atmospheric boundary layer. In this paper, a new LES model and its evaluation is persented. This model is established on consideration of its simplicity and of saving computation time.Ef forts are also exerted to keep this model reasonable in principle. Application of this model to simulate horizontally homogeneous convective boundary layer shows reasonable results. The simulation also shows that the model can be used to problems of a rather coarse resolution. It is also possible to apply further this model to more practical conditions.