We present here the validation of two computer models for the ITER CICCs based on experimental data produced at CEN-Grenoble. The models, implemented 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 that in the cooling hole. Both models give satisfactory results compared to the measurements of slow transients, and the more complete of the two shows a better agreement with the experiments.