[en] A survey of the current research programs for CVD coating of fibers designed for reinforcement showed that the coatings are currently designed on the basis of experiments and experience and without the assistance of analytical and numerical simulations of the process. This paper describes studies reported in the literature on modeling a fiber coating reactor, which can be used in the design of fiber-coating process. The need of a comprehensive model for the fiber-coating process, which would consider the entrance effect, reaction kinetics, fluid mechanics, and heat transfer is emphasized. It is suggested that the capabilities of some of the conventional CVD models can be applied to fiber coating reactors. 11 refs