A Description of the Framework of the Atmospheric Boundary Layer Environment (ABLE) Model

Report No. ARL-TR-6177
Authors: Yansen Wang, Chatt Williamson, and Benjamin MacCall
Date/Pages: September 2012; 32 pages
Abstract: This technical report documents the framework of a three-dimensional Atmospheric Boundary Layer Environment (ABLE) model. The objective of the project is to develop a microscale boundary layer meteorological model to fill the gap in Army applications. A set of incompressible equations for momentum, energy, and scalar is chosen specifically for the microscale meteorological modeling. A Cartesian coordinate with a structured grid is selected for a fast computation and domain preprocessing. A finite volume numerical method with a collocated grid is applied in this framework. Some planned features for this model system, such as turbulence model for sub-grid scale and the immersed boundary method, are also described briefly. Bench mark test cases compared with the laboratory data and with other numerical simulations are also performed and documented.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2012