Numerical Study on Dispersion Characteristics of Droplets Impacting on a Single Fiber

LIU Jinpeng; FENG Shengjie; ZHANG Wenbo; LIU Zixiong

doi:10.21656/1000-0887.460022

Volume 47 Issue 3

Mar. 2026

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LIU Jinpeng, FENG Shengjie, ZHANG Wenbo, LIU Zixiong. Numerical Study on Dispersion Characteristics of Droplets Impacting on a Single Fiber[J]. Applied Mathematics and Mechanics, 2026, 47(3): 329-339. doi: 10.21656/1000-0887.460022

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Numerical Study on Dispersion Characteristics of Droplets Impacting on a Single Fiber

doi: 10.21656/1000-0887.460022

1. Integrated New Energy Division, CNOOC Oilfield Services Limited, Tianjin 300459, P.R.China;
2. School of Petroleum Engineering, Northeast Petroleum University, Daqing, Heilongjiang 163318, P.R.China

Received Date: 2025-02-06
Rev Recd Date: 2025-04-02

Available Online: 2026-04-01

Publish Date: 2026-03-01

Abstract

Abstract

The high-gravity reactor, renowned for its superior mass transfer efficiency, plays a pivotal role in carbon capture processes. The wire mesh packing serves as the primary structural element enhancing mass transfer. To fully comprehend the dispersion mechanism, it is essential to investigate the dynamics of droplets impacting on a single fiber. The volume of fluid method was employed to numerically examine the interaction between a droplet and a fiber. The effects of factors such as the initial velocity (u₀),the initial diameter (D₀),the impact eccentricity (e),and the impact angle (θ)on droplet deformation and dispersion characteristics were analyzed in detail. Vertical or central impacts were divided into 4 key stages: splitting, merging, stretching, and breaking. In contrast, eccentric and nonvertical impacts exhibit asynchronous breaking, sliding splitting, and oblique deformation stages. To quantitatively assess the post-impact dispersion characteristics, the dimensionless time (t^*)and the gasliquid interfacial area growth rate (η)were introduced. The results indicate that, increasing the initial velocity, reducing the droplet diameter, minimizing the eccentric distance, and maximizing the impact angle all enhance dispersion. A correlation was established to predict the maximum increase rate in gas-liquid interfacial area.
- droplet impact,
- deformation evolution,
- dispersion characteristic,
- gas-liquid interfacial area,
- computational fluid dynamics (CFD) simulation

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References(23)

References

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