Achievement

IGERT trainee Jason Graham is working with the JHU Large Eddy Simulation code in order to simulate wind over complicated shapes. The aim is to model flows over multi-scale topography and vegetation canopies. The program uses pseudospectral method in horizontal planes, and finite differencing in the vertical direction. Complex shaped objects can be placed in the flow using immersed boundary technique. Jason has taken the existing code and has applied it to flow over horizontal rough surface, and flow over periodic array of wall-mounted cubes. Next steps will be for him to implement an updated version of the Renormalized Simulation Method and apply it to modeling of flow over fractal trees. Jason has also begun to study elements of the Turbulence Database Cluster and will work on implementing MATLAB tools to enhance this public resource.