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AN OPTIMAL ADAPTIVE LOCAL GRID REFINEMENT APPROACH TO MODELING CONTAMINANT TRANSPORT
Citation:
Yeh, G., K. Kane, AND T. Short. AN OPTIMAL ADAPTIVE LOCAL GRID REFINEMENT APPROACH TO MODELING CONTAMINANT TRANSPORT. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-92/182.
Description:
A Lagrangian-Eulerian method with an optimal adaptive local grid refinement is used to model contaminant transport equations. pplication of this approach to two bench-mark problems indicates that it completely resolves difficulties of peak clipping, numerical diffusion, and spurious oscillation. esults are compared with and shown superior to those obtained by the N+2 finite element methods whose accuracy relies on the proper choice of optimal parameters, there is no parameter adjustment required with the optimal adaptive local grid refinement approach. xtension of this approach to multi-dimensional problems does not pose any conceptual difficulty, and should alleviate grid orientation problems.