Objective

As written in the PSI record:

The objective of this research was to develop and validate new flamelet generated manifold (FGM) modeling techniques for concurrent flame spread in microgravity. Concurrent flame spread presented one of the greatest modeling challenges in combustion science due to the intricate coupling between heat transfer, mass transport, and chemical kinetics near the solid-vapor interface. Traditional modeling strategies often relied on hybridized turbulence and chemistry models that were not fully consistent and failed to capture important intermediate reaction pathways. To overcome these shortcomings, this PSI grant advanced the use of an unsteady flamelet generated manifold (UFGM) framework that reduced the complexity of reacting systems by mapping them into lower-dimensional manifolds. The research aimed to leverage this methodology to simulate solid fuel combustion processes with high fidelity, using the NASA Burning and Suppression of Solids (BASS and BASS-II) experiments as benchmarks. Ultimately, the long-term goal was to enable accurate prediction of flammability limits for spacecraft materials and to provide a tool that could also serve as a subgrid-scale model in large-eddy simulations of fires, supporting spacecraft safety and hazard mitigation.

Fingerprint COMPUTED

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Run table

PSI has no experimental table for this investigation (no run-level table): only the record text above.