Simulating of Erosion Modeling in Terms of Physical Decontamination of Pipes Used in Nuclear Power Plants

Decontamination practices are based on the process of reducing the radioactivity of the contaminated equipment, which occurs during operation and after the dismantling of nuclear power plants, with appropriate methods. Radioactive contamination on or near surfaces of equipment are removed by physical and/or chemical decontamination methods. This study deals with the modeling with Computational Fluid Dynamics (CFD) for the decontamination of contaminated pipes used in nuclear power plants by the physical methods of abrasion and erosion mechanism. The micromechanical process of erosion is affected by many factors. Of these multiple factors, the most critical ones, fluid and solid particle properties, particle size and velocity effects on erosion is examined. All obtained results are compared for a particular pipe diameter and size according to maximum erosion rate values