FIDAP's unique finite element method (FEM) based solver offers many features to increase your productivity in every phase of CFD analysis. The FEM method yields extremely accurate spatial resolution of flow details. Shape functions in the linear and quadratic elements give a description of the flow solution not only at the nodal points of the mesh but also at all locations in-between. This gives you outstanding accuracy with a smaller number of grid points compared to other solution methods. FEM-based solutions suffer very little numerical diffusion (the "smearing" of the solution when the flow is not aligned with the grid). By allowing the triangular, quadrilateral, tetrahedral, pyramid and prism (available in version 8.7) and hexahedral elements to be arranged in an arbitrarily unstructured arrangement, FIDAP provides the flexibility to analyze problems in very complicated geometries.