Thin Surface Permeability Modeling for Mars Supersonic Parachute Inflations

The broadcloth material used in parachute manufacturing is generally a thin woven permeable textile material. As has been performed in previous works, a comparison is made between two different parachute fabric permeability modeling methodologies: 1) simulations that resolve geometric pores in a thin surface ("pore-resolved" simulations), and 2) a homogenization approach that does not require fine geometric resolution, and is computationally tractable for larger parachute simulations. The comparisons were originally performed in (Huang, D. Z., Wong, M. L., Lele, S. K., and Farhat, C., "Homogenized Flux-Body Force Treatment of Compressible Viscous Porous Wall Boundary Conditions," AIAA Journal, Vol. 59, No. 6, 2021, pp. 2045-2059), and this work builds on those previously published results. With a focus on conditions relevant to supersonic parachute inflations at Mars, preliminary progress is shown for how the simulation results can be related to existing reduced-order models used to predict parachute aerodynamic performance.