2025/11/04 by Jana, Tapan, Shaw, Amit, Ramachandra, L. S.
Engineering · Materials Science · #Boundary value problem #Drop (telecommunication) #Drop impact #Fluid Dynamics Simulations and Interactions #Fluid Dynamics and Heat Transfer #Fluid–structure interaction #Impact #Particle method #Smoothed-particle hydrodynamics #Surface Modification and Superhydrophobicity #Viscoelasticity #Viscous liquid
paper · open access · doi:10.48550/arxiv.2511.02308
published in arXiv (Cornell University) (Cornell University)
openalex publication_date 2025/11/04 · openalex created_date 2025/11/06 · openalex updated_date 2026/07/28
The present study explores the impact of a non-Newtonian fluid drop on a rigid surface using a mesh-free approach, Smoothed Particle Hydrodynam-ics. The complex interaction between viscous and elastic forces during drop impact may be reproduced by integrating the Oldroyd-B model, which de-scribes viscoelastic fluids, into the developed computational framework. A suit-able boundary condition is assumed for interaction between fluid and solid sur-faces. The ongoing study examines how a droplet deforms, spreads, and recoils after an impact due to its viscoelasticity. The developed computational frame-work is validated by comparing results from existing literature, providing an understanding of how viscoelasticity influences drop-impact behaviour and opening up new avenues for subsequent research in fluid dynamic problems.