NRSC specialists Hovhannes Hovhannisyan and Mher Mantashyan participated in the ANSYS CFX advanced training course which took place at the Budapest University of Technology and Economics on 3-28 October 2016. The training course was organized within the support of Brookhaven National Laboratory (in the framework of US NRC and ANRA cooperation agreement) and was aimed to provide deep knowledge in the field of ANSYS CFX code. In the framework of training NRSC specialists modeled WWER-440 reactor’s pressure vessel and fuel assembly. Using developed models were performed calculations.