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Claw2d 1.0 is a computer program that performs numerical solution of initial – boundary value problems for two-dimensional conservation laws. In the present version only 2d shallow water equations are included together with appropriate numerous boundary conditions that model lakes, see estuaries, coasts and walls, bridges, weirs, dams, etc. Numerical solution is based on the application of Q-schemes. The complete program’s code is object oriented and it is written in C++. User interface is developed using the Microsoft Developer Studio Visual C++ 6.0 and it enables the user to easily build a new project, add all the components of the model, define all the necessary data, perform all computations and examine graphically and numerically all the obtained results. Graphical representations are 2d and 3d and are implemented through OpenGL. The programs is and can be applied to problems of flow in natural watercourses, artificial channels or propagation of flood waves.

Claw2d 1.0 is a computer program that performs numerical solution of initial – boundary value problems for two-dimensional conservation laws. In the present version only 2d shallow water equations are included together with appropriate numerous boundary conditions that model lakes, see estuaries, coasts and walls, bridges, weirs, dams, etc. Numerical solution is based on the application of Q-schemes. The complete program’s code is object oriented and it is written in C++. User interface is developed using the Microsoft Developer Studio Visual C++ 6.0 and it enables the user to easily build a new project, add all the components of the model, define all the necessary data, perform all computations and examine graphically and numerically all the obtained results. Graphical representations are 2d and 3d and are implemented through OpenGL. The programs is and can be applied to problems of flow in natural watercourses, artificial channels or propagation of flood waves.