Investigation into wind effects on fire spread on inclined wooden rods by multi-spectrum and schlieren imaging

A combined imaging system that can monitor the visible flame, invisible hot flow, flame temperature and surface was developed to investigate combustion of wooden rods inclined at 30° under forced air flow. micro wind tunnel is designed generate flow an angle with fire rod. It found a low-speed enhance burning lifetime charring rate, while high speed decrease intensity combustion. There were three aspects influence spreading fire: 1. The effect temperature; 2. change surface; 3. field around rods, particularly for underneath rod surface. statistics visualisation have enhanced understanding mechanisms wood in beneficial monitoring process because it temperature, visualise products simultaneously.