ABSTRACT. -Numerical modelling of the inlet structure of Kisdelta flood control reservoir. This study aims to introduce a methodology on how the targeted use of a 1D and a 2D hydraulical numerical model can provide indispensable data for the design of an flood control structure. With the numerical modelling of the Körös-Valley river system (1D) and the inlet structure of Kisdelta flood control reservoir on the river Crişul Alb/Fehér-Körös (2D) the main geometrical data and hydraulic parameters were defined.
Key-words: One-dimensional (1D) calculations, two-dimensional (2D) calculations, flood control reservoir, inlet structure, Crişul Alb, Fehér-Körös