Conclusion: We concluded areas susceptible to wildfires may benefit from clearing grass and other brush from properties. Additionally, building in areas with flat ground would help in slowing fire spread.

Discussion: The grass between the houses was the most important variable. It was the most effective way to prevent fire spread. During trials without grass, the fire didn’t spread to the houses. Moisture and slope affected the fire spread rate, but did not prevent fire spread.

Results 3: Although not all trees and houses did light in non-vegetation trials, the moisture content did have an effect. Parts of the tree closer to the flame were found to be dry, while the parts further were still damp. Proving the moisture did weaken the flame spread.

Results 2: The top image displays a trial not including vegetation, the flame did not spread. The bottom image is a trial that included vegetation, the flame spread across the entirety of the table. This shows an increase in flame spread due to a rich vegetation environment.

Results 1: The no-vegetation tests resulted in no flame spread to houses 3 and 4, therefore, they were not included in a graph. The vegetation tests, using a thin layer of pine needles, resulted in a complete burn of the table contents. Data for this is listed in the graph below:

Experimental Description 2: For each test, we ignited houses 1 & 2 by soaking with heptane and measured the time to ignition of houses 3 & 4 to test the effects of slope, moisture content, and ground vegetation.

Experimental Description 1: We set up a repeated layout of 4 cardboard houses in a 2x2 pattern with 2 trees between. Using pine needles for ground vegetation, water sprays for moisture content, and a tilting table for slope, we compared all combos of variables over 8 tests.

Experiment goal: Our experiment is designed to determine the effects of slope, vegetation, and moisture on Wildland Urban Interface (WUI) Fires. We expect the fire spread rate to increase with slope and vegetation, and decrease with moisture content

Motivation: Wildland urban interface (WUI) fires are becoming an increasingly large problem in many regions. Our experiment aims to examine how different yard conditions (such as grass presence, slope, and moisture content) can affect the spread of these fires into communities.

Introduction: In our Fire Lab course, our group experimented with environmental factors using scale models to examine how they affect the spread of wildland fires through nearby communities. Fuel moisture content, slope, and vegetation density were all adjusted in the experiment.

In FP 4000 - Fire Lab, 4 student groups explored parameters that impact structure ignition in Wildland Urban Interface (WUI) Fires by designing their own experiment and writing a lab report as a twitter thread. Group 4:

Conclusions: After testing the effects of the ground mixture and foliage on flame spread, we found that having foliage had a large effect on fire spread and having sand instead of soil also increased the spread of the flame

Discussion: We found that sand environments with and without vegetation reached higher temperatures than soil ones. Tests without vegetation also showed lower temperatures at further distances because the fire did not spread to houses 2 and 3.

Results: During our 8 tests, the fire spread past the 1sthouse once using dirt and twice using sand.

We used temperature sensors placed behind each house to record the temperature, assuming ignition occurs at 300°C. We analyzed the flame spread rates from the 8 tests under the 3 different conditions to determine their impact on slowing the spread.

Experimental Description: The experimental setup had 3 houses in a line for each test. Then, varying the soil type, vegetation, & wind speed. A temperature sensor was placed as the back base of each house. This setup can be seen in the image below.

Experiment Goal: Our goal was to see if the fire spread was faster when we used dirt vs sand, vegetation vs no vegetation, and lower wind speed vs higher wind speed.

Motivation: With wildfires becoming more common, is fire spread going to be more/less severe around the world with different environments?

Introduction: Our lab group wanted to see whether flame spread rate is influenced by soil type, vegetation, and wind speed.

In FP 4000 - Fire Lab, 4 student groups explored parameters that impact structure ignition in Wildland Urban Interface (WUI) Fires by designing their own experiment and writing a lab report as a twitter thread. Group 3: