화학공학소재연구정보센터
Particulate Science and Technology, Vol.37, No.3, 275-285, 2019
CFD modeling of erosion wear in pipe bend for the flow of bottom ash suspension
In the present study, erosion wear behavior of slurry pipeline due to solid-liquid suspension in the pipeline has been investigated using commercial computational fluid dynamics (CFD) code FLUENT. A multiphase Euler-Lagrange model was adopted to predict the solid particle erosion wear in a 90 degrees pipe bend for the flow of bottom ash-water suspension. A standard k-epsilon turbulence modeling scheme was used to simulate the flow through the pipeline. Water and bottom ash were taken as liquid and as a dispersed phase of solid-liquid mixture, respectively. A simulation study for erosion wear in a pipe bend was carried out to investigate the influence of various parameters including velocity, solid concentration, and particle size. The velocity of the bottom ash-water suspension varied from 0.5 to 2.5 m/s for solid concentrations with a range of 2.5 to 10.0% (by volume). The particle diameters of the bottom ash were 162 and 300 mu m. The simulation results agree with the results of previous studies.