Method, device and storage medium for calculating smoke cover speed of indoor fire
By employing three-dimensional grid discretization and multi-window coupled smoke dynamic equations in urban village buildings, the adaptation problem of smoke diffusion simulation was solved, enabling accurate quantification and risk prediction of the smoke spread process, and improving the accuracy of fire risk assessment and the effectiveness of emergency evacuation route planning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN URBAN SAFETY MONITORING & EARLY WARNING TECH CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing numerical simulation methods for fire smoke have failed to effectively adapt to the coupled crossflow of smoke through multiple windows in urban villages and the gridded temporal diffusion in narrow spaces, making it difficult to accurately quantify the risk of indoor smoke coverage.
By employing three-dimensional uniform grid discretization, window feature quantization, dual-drive dynamic field of thermal pressure and wind pressure, multi-window coupled flue gas dynamic equation, and multi-level correction technology, a flue gas diffusion model driven by fire source is constructed, which accurately calculates flue gas velocity and concentration field and predicts the probability of future flue gas coverage.
It enables precise quantification of the smoke spread process within buildings in urban villages, improves the accuracy and predictive ability of fire risk assessment, provides technical support for fire prevention renovation and emergency evacuation route planning, and reduces the risk of smoke-related injuries and fatalities.
Smart Images
Figure CN122413697A_ABST