What question did this study set out to answer?

The research aims to explore the erosion resistance of ribbed shell structures using numerical simulations.

January 14, 2026Open Access

Research on the Anti-Erosion Mechanism of the Shell Surface Structure Based on Numerical Simulation

ZWZhenjiang WeiHeze University CZChengchun ZhangJilin University XLX. T. LiuNew Era College

Key Points

The research aims to explore the erosion resistance of ribbed shell structures using numerical simulations.
Conducted numerical simulations of erosion on smooth and ribbed shells.
Analyzed the impact of particle velocities and flow directions on erosion rates.
Studied the effects of shell ribbing on flow dynamics and erosion.
Measured changes in erosion rates between ribbed and smooth shells.
Ribbed shell's total erosion rate is 29.08% lower than smooth shell when flow direction is perpendicular to ribs.
Impact velocity of 0.5 mm particles is 15.91% lower on ribbed shells than on smooth shells.
A low-velocity flow field forms in the grooves of the ribbed shell, causing particle deceleration.

Abstract

This paper introduces a biological surface that is resistant to erosion under liquid–solid two-phase flow. Numerical simulations are used to study the erosion of smooth and ribbed shells by particles. The results show that when the flow direction is perpendicular to the direction of the shell ribs, the total erosion rate of the ribbed shell is 29.08% lower than that of the smooth shell, and the impact velocity of particles with a diameter of 0.5 mm on the ribbed shell is 15.91% lower than that on the smooth shell. This phenomenon occurs because a low-velocity flow field is formed in the grooves of the ribbed shell, which causes the particles to decelerate for some time before impacting the shell. This ribbed structure may provide design ideas for equipment that is susceptible to erosion.

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