Curvilinear Coordinate System Used To Solve Tritium Dispersion In Complex Orographies.

In this contribution we present progress on research concerning dispersion of tritium around the Angra Nuclear Power Plant (Angra dos Reis, Rio de Janeiro state, Brazil). particular, are interested in studying how behaves scenarios with complex orography. Our proposal is to transform a problem curvilinear boundaries into an equivalent plane parallel boundaries. We modify coordinate system through diffeomorph conformal transformation. Consequently, operators dynamical equations change according additional terms from affine connection. To define transformation it necessary satisfy strong constraints, i.e., shall be “smooth”. Even restrictions, our model can implemented several situations. A flat region particular case domain and studied, where height boundary layer above rivers, lakes, basins typically smaller thus implies varying height, for example. Thus, even regions variations occur, which characterizes domain. There nuclear power plants worldwide, that located mountainous regions, as example Japan Brazil.We simulation specifically area 2 relief characterized by considerable complexity. With intention showing methodology consistent, will consider only variation relief.