Investigating Numerically the Effect of Wind on Fire Spread Between Two Informal Settlements Dwellings

Abstract Previous full-scale fire studies revealed that the role of wind on spread between informal settlement dwellings was critical. However, influence conditions is currently understudied in literature. This study aimed to investigate effect external two with a distance 1 meter them. A parametric numerical analysis performed using computational fluid dynamics code Fire Dynamics Simulator. The models were benchmarked through laboratory experiments. investigation included an mechanism, flashover conditions, and heat transfer processes at boundaries dwellings. Simulations conducted burning wood cribs as fuel three speeds (6 m/s, 10 14 m/s) four directions (East, West, South, North). Results showed speed direction had significant impact origin dwelling its neighboring also influenced time both dwellings, delay observed when flowed alley total coefficient found be directly proportional for all directions. internal radiative one wall represent different scenarios. highlights complexity determining urban underscores need further research this area.