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ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL AND NUMERICAL ANALYSIS OF EROSION BY PARTICLE-LADEN IMPINGING JETS
Submission Author:
Cristian Mauricio Potosi Rosero , RJ , Brazil
Co-Authors:
Jáder Araujo, Cristian Mauricio Potosi Rosero, Felipe Lopes Menezes dos Reis, Eduardo Ramos David, Daniel do Amaral Rodrigues, Atila Pantaleão Silva Freire
Presenter: Cristian Mauricio Potosi Rosero
doi://10.26678/ABCM.ENCIT2022.CIT22-0473
Abstract
Erosion caused by solid particles is an important phenomenon in many industrial applications, since erosive damage can occur to key monitoring instruments and components, reducing their life cycle and increasing the risks of operation. In this work, numerical simulations and experimental tests of normally impinging erosive jets are carried out on AISI 304 stainless steel flat plates using SiC abrasive particles. The effects of Reynolds number (Re=20,300, 29,200 and 34,100), impact angle (30°, 45°, 60° and 90°) and particle size distribution (mean diameters of 50 and 100 µm) on erosive wear are studied through numerical and experimental analysis. Photographs of eroded plates and the eroded profiles for different conditions are presented. For the numerical investigations, custom libraries are developed on OpenFOAM to compute both erosive damage and partially inelastic particle-wall collisions. The results clearly show that erosion wear is highly dependent on the kinetic energy of the particle at impact. The larger the size of the particle or the larger its velocity, the larger is the damage it causes. This work shows a comparison between the velocity profiles resulting from PIV measurements, measured eroded profiles, and numerical simulations to validation of erosion models for conditions off their original calibration ranges.
Keywords
Erosion, Impinging jets, particle-laden flows
