Innovative Meshless Methods for Multiphase Flows and Fluid–Structure Interaction Problems

Dear Colleagues,

Meshless methods have gained significant attention due to their unique advantages in handling complex fluid dynamics problems, particularly those involving free surfaces, multiphase interfaces, and fluid–structure interactions. Among these methods, Smoothed Particle Hydrodynamics (SPH) stands out as a powerful Lagrangian, mesh-free numerical technique that has been widely applied across various fields.

This Special Issue on "Innovative Meshless Approaches for Multiphase Flows and Fluid–Structure Interaction Problems" aims to highlight the latest advances and applications of meshless methods in addressing these challenging problems. The Special Issue will cover recent developments in the fundamental theory of SPH and other meshless methods, focusing on their applications in multiphase flows, fluid–structure coupling, non-Newtonian fluids, and other related fields. Topics of interest include, but are not limited to, the following:

• Applications of SPH in complex fluid flow problems.
• Advances in SPH and other mesh-free methods.
• Coupling of SPH with other methods, e.g., coupling SPH with other numerical methods, such as the discrete element method (DEM), finite element method (FEM), and material point method (MPM), has shown promise in solving complex flow problems. These coupled approaches leverage the strengths of different methods to provide more robust solutions for fluid–structure interactions.
• Applications in emerging fields, e.g., additive manufacturing, geomechanics, soft materials, and nano-scale machining.
• Future directions: the Special Issue will also explore future research directions, such as the integration of machine learning techniques with SPH to further enhance computational efficiency and accuracy.

We invite researchers from academia and industry to submit their latest findings and innovative approaches in this Special Issue, contributing to the ongoing advancements in meshless methods for multiphase flows and fluid–structure interaction problems.

Dr. Xiangwei Dong
Dr. Man Hu
Dr. Long Feng
Guest Editors

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