FEM2D_POISSON_LAKE
A Lake Problem

FEM2D_POISSON_LAKE is a C++ library which describes the geometry of a simulated lake with an island and other data needed in order to request a solution by FEM2D_POISSON.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

FEM2D_POISSON_LAKE is available in a C++ version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs:

FEM2D_POISSON, a C++ program which applies the finite element method to a 2D Poisson problem, with user input.

Source Code:

• lake.cpp, the user-supplied routines to evaluate the right hand side, linear coefficient, and boundary conditions;
• lake.sh, commands to compile the user routines, link them with the partial program, and run the program;
• lake_output.txt, output from a run of the program;
• lake_nodes.txt, a text file containing a list, for each node, of its X and Y coordinates;
• lake_nodes.png, a PNG image of the nodes.
• lake_elements.txt, a text file containing a list, for each element, of the three nodes that compose it;
• lake_elements.png, a PNG image of the nodes.
• lake_solution.txt, a text file containing the solution U at each node (X,Y);

You can go up one level to the C++ source code page.