The present paper describes a study of Freon R11 hydrate deposition in a turbulent flow of water. Eulerian-Eulerian CFD model was built in order to study the process numerically, the model was validated with experimental data from the multiphase flow loop. Different mechanisms for particulate stress were studied in the work in terms of their performance results, compared to experimental data. The model considered an expression for variable hydrate particle size which was validated in a series of population balance numerical experiments. (c) 2010 Elsevier Ltd. All rights reserved.