InterPore2026

One-domain approach for simulating ablative porous materials in high-enthalpy flows

20 May 2026, 14:05

15m

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

Speaker

Dr Bruno Dias (AMA at NASA ARC)

Description

Enabling design by analysis requires the development of high-fidelity tools that couple flow and material behavior. A main challenge lies in developing suitable and robust numerical techniques that accurately track the material interface and in defining proper boundary conditions that capture material degradation. The material response in the presence of defects introduces added complexities, such as augmented heating, pyrolysis gas flow driven by pressure gradients, alterations to heat conduction due to material anisotropy, etc.

In this work, we study TPS using a one-domain porous media model based on the volume-averaged Navier-Stokes (VANS) equations. We generalize the governing equations to solve the flow field and the material in a unified approach. The strong coupling between each phase mitigates modeling assumptions in conjugate heat-transfer coupling. This allows for a natural progression of the material interface due to heterogeneous reactions and the blowing of pyrolysis gases from the porous material without the need for complex boundary conditions.
During the talk, we will show how to model porous TPS materials under high-enthalpy conditions utilizing the one-domain porous media model.