Computational study of the particle size effect on a jet erosion wear device

Aponte, Rodríguez; Teran, Leonel A.; Ladino, Alexander; Larrahondo, F.; Coronado, J.J.; Rodríguez, S.A.

doi:10.1016/j.wear.2016.11.042

Cited by 32 publications

(12 citation statements)

References 14 publications

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“…The second stage of the work was improving the profile of the runner blade. Aponte et al [20] performed CFD analysis to predict erosion by hard particles. They used the experimental data to determine the coefficients for the Tabakoff-Grant erosion model.…”

Section: Cfd Workmentioning

confidence: 99%

Sediment and Cavitation Erosion in Francis Turbines—Review of Latest Experimental and Numerical Techniques

Noon

Kim

2021

Energies

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Sediment and cavitation erosion of the hydroelectric power turbine components are the fundamental problems in the rivers of Himalayas and Andes. In the present work, the latest research conducted in both the fields by various investigators and researchers are discussed and critically analyzed at different turbine components. Analysis shows that both types of erosion depends on flow characteristics, surface, and erodent material properties. Design optimization tools, coalesced effect (CE) of sediment and cavitation erosion and well conducted experiments will yield results that are beneficial for erosion identification and reduction. Although some researchers have done experimental work on the coalesced effect (CE) of sediment and cavitation erosion, very limited Computational Fluid Dynamics (CFD) work is available in literature. The present research work will be beneficial for practitioners and researchers in the future to address the erosion problem successfully.

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Section: Cfd Workmentioning

confidence: 99%

Sediment and Cavitation Erosion in Francis Turbines—Review of Latest Experimental and Numerical Techniques

Noon

Kim

2021

Energies

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“…In this paper, four representative impact angles of 30 , 45 , 60 , and 90 were selected for testing. 20,23,31,[41][42][43] For the test, the impact angle was defined as the included angle between the sand incidence direction and the target, as shown in Figure 3. The impact velocity increased from 250 (AE5) m/s to 400 (AE5) m/s at a gradient of 25 (AE5) m/s.…”

Section: Test Methodsmentioning

confidence: 99%

Experimental study on the high-speed impact of a sand particle on Ti–6Al–4V

Cheng

Chen

Zhao

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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When sand is ingested by a helicopter engine, it collides with the compressor blades at a high relative speed, causing severe erosion damage. A test was conducted on the high-speed impact of sand particles on the target of Ti–6Al–4 V alloy to enhance the understanding of high-speed impact damage mechanism. The test apparatus was used to create supersonic airflow, which was produced by normal temperature air flowing through a special Laval nozzle. The supersonic airflow produced the drag force to increase the velocity of sand particles up to about 400 m/s. The experiment demonstrated that fractured sand particle caused less damage than nonfractured particle under similar impact conditions. The nonfractured particle directly cut the target more easily than the fractured at a relatively low impact velocity. When the impact speed exceeded 300 m/s, the crater depth increased exponentially with the increase of velocity. Impact angle determined the mode of material failure.

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“…Therefore, particles with high density and low shape factor will lead to deep pits and high surface roughness. A computational study of the particle size effect on a jet erosive wear device was proposed by Aponte et al [21]. Their results showed that the erosion rate with smaller particles was affected by fluid; since small particles tend to follow the flow streamlines, while larger particles move according to the conditions imposed by the jet at its outlet.…”

Section: Introductionmentioning

confidence: 99%

Multicomponent Water Effects on Rotating Machines Disk Erosion

Yang

Hou

et al. 2020

Water

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When sand particles are entrained into carrier flow, such as liquid, a strong interaction occurs with the surface of the metallic material, resulting in serious erosion damage. However, the effect of the physical properties of particles and materials on erosion characteristics has not been well studied. In this paper, the erosion-wear behavior of a rotating disc surface under the action of solid–liquid two-phase flow was studied by using the discrete particle model (DPM). The wear effects on the surface of sample due to particle diameter (d = 0.1 mm, d = 0.2 mm, d = 0.3 mm, d = 0.4 mm), particle volume fraction (CV = 2%, CV = 3%, CV = 4%, CV = 5%), and particle inlet velocity (v = 1.05 m/s, v = 2.05 m/s, v = 3.05 m/s, v = 4.05 m/s) were analyzed using representative values of operating conditions of rotating machines. The results show that the wear amount increases exponentially with the radius, whilst the maximum wear amount increases faster than the average wear amount with the particle volume fraction. The surface wear grows inversely with the particle diameter but slightly with the particle inlet velocity. A case study of stainless steel samples at different radius positions on the surface of rotating disc is carried out using a mixed velocity of sand and water of 2.05 m/s, an average particle size of 0.1 mm, and a concentration of CV = 2.5%. The experiments show the wear amount increases with the radius on the surface of the rotating disc, just as predicted by the numerical simulation. Two important findings emerge from the study: (1) the wear morphology of the specimen surface develops from two to three regions; (2) when the basal body is rotating at high speed, the wear degree is influenced more by the circumferential than particle inlet velocity. The wear morphology was observed by using a scanning electron microscope (SEM). It exhibited a mixture of fine and coarse scratches and pits, and the distribution of these varied according to the radial distance of the disc.

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Computational study of the particle size effect on a jet erosion wear device

Cited by 32 publications

References 14 publications

Sediment and Cavitation Erosion in Francis Turbines—Review of Latest Experimental and Numerical Techniques

Sediment and Cavitation Erosion in Francis Turbines—Review of Latest Experimental and Numerical Techniques

Experimental study on the high-speed impact of a sand particle on Ti–6Al–4V

Multicomponent Water Effects on Rotating Machines Disk Erosion

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