Multiscale DEM-CFD model for simulating hair-fluid interactions

Overview

The multiscale DEM-CFD coupled model offers a sophisticated simulation tool designed to accurately predict the interactions between hair strands and fluid flow. By integrating Discrete Element Methods (DEM) for modeling hair dynamics and Computational Fluid Dynamics (CFD) for fluid behavior, this framework simulates complex forces such as drag, capillary action, and strand cohesion. This model is particularly useful for understanding hair responses to various fluid environments including washing, drying, and styling. It aims to predict critical hair properties like elasticity, friction, and porosity under different conditions, providing valuable insights for cosmetic product development.

Technical specifications

• Discrete Element Methods (DEM): Models hair strands, capturing properties such as elasticity, porosity, and friction.
• Computational Fluid Dynamics (CFD): Simulates fluid behavior, enabling the analysis of drag, capillary action, and cohesion forces.
• Scalable framework: Adapts to diverse cosmetic formulations and product categories.
• Sensitivity analysis: Identifies key atomic-scale parameters affecting macroscale behaviors.
• Validation against experiments: Ensures precise predictions through comparisons with experimental observations.

Technology readiness level

The model is at Technology Readiness Level 6, indicating it has been validated in a relevant environment, but further experimental insights and data are required for full commercial deployment. The project seeks partnerships for funding and experimental data to enhance model robustness and applicability.