Abstract
Pipe wall thinning is one of the most serious problems in a power plant operation. The analysis of pipe wall thinning phenomenon is a critical issue for the safety and to in- crease the operation rate of power plants. One of the main causes of pipe wall thinning phe- nomenon of power generation facilities is the liquid droplet impingement erosion (LDIE). It is well known that the LDIE progress is classified into three stages; incubation, acceleration and steady-state. Conventionally, the steady-state stage has been investigated. In this study, we develop a numerical procedure to predict the incubation period and the steady-state stage. Additionally, we simulate the LDIE using computational fluid dynamics. The simulation re- sults are compared with the experiment. As the results, it is shown that the simulation results are in qualitative agreement with the experimental data. And thus we confirm that the numer- ical procedure of LDIE model proposed in this study is fairly validated.
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