COMPUTER-ANALYSIS OF THE THERMOHYDRAULIC MEASUREMENTS ON CEA DUMMY CABLES PERFORMED AT CEN-GRENOBLE

We present here the validation of two computer models for the ITEP, CI CCs based on experimental data produced at CEN-Grenoble. The models, i mplemented in two finite element computer codes, describe compressible helium flow in a Cable-in-Conduit with central cooling hole. The main difference between the two is in the treatment of the transverse mass and energy transfer between the helium flow in the cable bundle and t hat in the cooling hole. Both models give satisfactory results compare d to the measurements of slow transients, and the more complete of the two shows a better agreement with the experiments.