FlameForge: Combustion of Generalized Wooden Structures

TL;DR

FlameForge is a versatile volumetric combustion simulator capable of modeling complex wooden and non-wooden structures, capturing multi-phase combustion, surface insulation effects, and mechanical deformations, validated against real-world experiments.

Contribution

The paper introduces a unified, multiresolution volumetric combustion simulator supporting general structures and materials, with efficient data structures and coupling with physics for deformation effects.

Findings

Successfully simulates diverse structural configurations and materials.

Accurately models the insulating effect of char layers.

Quantitative validation against real-world combustion data.

Abstract

We propose a unified volumetric combustion simulator that supports general wooden structures capturing the multi-phase combustion of charring materials. Complex geometric structures can conveniently be represented in a voxel grid for the effective evaluation of volumetric effects. In addition, a signed distance field is introduced to efficiently query the surface information required to compute the insulating effect caused by the char layer. Non-charring materials such as acrylic glass or non-combustible materials such as stone can also be modeled in the simulator. Adaptive data structures are utilized to enable memory-efficient computations within our multiresolution approach. The simulator is qualitatively validated by showcasing the numerical simulation of a variety of scenes covering different kinds of structural configurations and materials. Two-way coupling of our combustion simulator and position-based dynamics is demonstrated capturing characteristic mechanical deformations caused by the combustion process. The volumetric combustion process of wooden structures is further quantitatively assessed by comparing our simulated results to sub-surface measurements of a real-world combustion experiment.