InterPore2026

Random-Walk simulation methods for the modeling of ballistic/diffusive heat and mass transfer in evolving porous media

20 May 2026, 14:50

15m

Oral Presentation (MS18) High-temperature heat and mass transfer within porous materials for energy and space (T > 800 °C) MS18

Speaker

Prof. Gerard Vignoles (Université de Bordeaux - LCTS)

Description

In the context of modeling the manufacturing and degradation of high-temperature carbon- or ceramic-matrix composites (CMCs), the simulation of heat and mass transfer in porous media is a key element. The transfer modes are frequently a mix of diffusive and radiative transfer, such as rarefied gas transfer during Chemical Vapor Infiltration, an important processing route for CMCs, and conducto-radiative heat transfer in porous ablators used in Thermal Protection Systems. We will discuss numerical methods based on Random Walks to model these hybrid transfer cases in evolving porous media, ie. with decreasing or increasing porosity.