Turbulence and Heat Transfer in Porous Layers
Published:Dec 29, 2025 23:09
•1 min read
•ArXiv
Analysis
This paper investigates the complex interaction between turbulent vortices and porous materials, specifically focusing on how this interaction affects turbulence kinetic energy distribution and heat transfer. The study uses direct numerical simulations (DNS) to analyze the impact of varying porosity on these phenomena. The findings are relevant to understanding and optimizing heat transfer in porous coatings and inserts.
Key Takeaways
- •The study uses DNS to simulate the interaction of a bluff-body wake with a heated porous layer.
- •Porosity significantly impacts the breakdown of incoming vortices and the generation of turbulence within the porous layer.
- •Lower porosity leads to enhanced heat transfer due to increased shear and fluid/solid interaction.
Reference
“The lower-porosity medium produces higher local and surface-averaged Nusselt numbers.”