Generating Wind-Driven Firebrand Showers Characteristic of Burning Structures

Area of Science:

• Fire Science
• Structural Engineering
• Disaster Prevention

Background:

• Firebrands are a primary ignition source in large-scale outdoor fires, including Wildland-Urban Interface (WUI) and urban fires.
• Limited data exists on firebrand production from actual structure fires and large outdoor fire events.
• Understanding firebrand generation is crucial for improving fire safety and mitigation strategies.

Purpose of the Study:

• To experimentally simulate firebrand showers produced from structure combustion.
• To utilize a detailed experimental database of firebrand generation from structure combustion.
• To investigate firebrand production in large outdoor fire scenarios.

Main Methods:

• Development of a redesigned firebrand generator apparatus.
• Installation of the apparatus in a full-scale wind tunnel.
• Utilizing an experimental database of firebrand generation from structure combustion.

Main Results:

• Successful generation of firebrand showers under controlled experimental conditions.
• Data collected on firebrand characteristics and shower patterns from simulated structure fires.
• Validation of the experimental setup for simulating real-world fire scenarios.

Conclusions:

• The experimental approach effectively simulates firebrand showers from structure combustion.
• The generated data can inform improved fire risk assessment and mitigation strategies for WUI and urban fires.
• Further research can build upon this methodology to enhance understanding of fire spread dynamics.