Abstract
In this paper, we present a methodology for predicting
the spreading and combustion of liquid fuel released from
an aircraft impact. Calculations were done with Fire
Dynamics Simulator, and the aircraft impact was modeled
as a spray boundary condition. The spray boundary
condition was developed and validated by experiments
using water-filled missiles. The predicted liquid front
speeds were compared with water spray front propagation
data, and the predicted lifetimes and diameters of
fireballs were compared with experimental correlations. A
full-scale simulation of the aircraft impact on a nuclear
island was performed. The simulation results were used to
assess the adequacy of physical separation in the case of
aircraft impact. We concluded that 10%-20% of the fuel
involved in the crash will accumulate in pools around the
building.
| Original language | English |
|---|---|
| Pages (from-to) | 147-162 |
| Number of pages | 16 |
| Journal | Nuclear Engineering and Design |
| Volume | 318 |
| DOIs | |
| Publication status | Published - 1 Jul 2017 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- fireball
- plane crash
- physical separation
- fuel pooling
- nuclear power plant
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Cite this
Sikanen, T., & Hostikka, S. (2017). Numerical simulations of liquid spreading and fires following an aircraft impact. Nuclear Engineering and Design, 318, 147-162. https://doi.org/10.1016/j.nucengdes.2017.04.012