SGER: A Numerical Study of the Effects of Bottom Topography on a Free Surface

该项目将进行为期一年的研究，以探索地形诱导的湍流撞击自由表面的物理机制，并探索在各种情况下进行海底地形表面探测的可行性。PI将对四种情况下的流动进行自由面大涡模拟(LES)：1)单个多项式丘陵，2)二维正弦地形，3)三维正弦地形，4)河道和浅滩布局。将对数值输出进行分析，以研究表面上的应力和平流模式，这可能被用来识别下面的地形。

The project is for a one year study to explore the physics of topographically- induced turbulence impinging on a free-surface, and to explore the feasibility of surface detection of bottom topography in a variety of circumstances. The PI will perform a Large-Eddy Simulations (LES) with a free-surface for flows in four scenarios: 1) a single polynomial hill, 2) two-dimensional sinusoidal topography, 3) three-dimensional sinusoidal topography, and 4) a channel and shoal configuration. The numerical output will be analyzed to investigate patterns of stress and advection on the surface which may be used to identify underlying topography.