Numerical simulations of liquid spreading and fires following an aircraft impact

Topi Sikanen, Simo Hostikka

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

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 languageEnglish
Pages (from-to)147-162
Number of pages16
JournalNuclear Engineering and Design
Volume318
DOIs
Publication statusPublished - 1 Jul 2017
MoE publication typeA1 Journal article-refereed

Fingerprint

aircraft
Fires
Aircraft
spray
sprayers
liquid
Computer simulation
Liquids
liquids
simulation
boundary condition
Boundary conditions
boundary conditions
liquid fuels
crashes
adequacy
fireballs
Water
missiles
Liquid fuels

Keywords

  • fireball
  • plane crash
  • physical separation
  • fuel pooling
  • nuclear power plant

Cite this

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Numerical simulations of liquid spreading and fires following an aircraft impact. / Sikanen, Topi; Hostikka, Simo.

In: Nuclear Engineering and Design, Vol. 318, 01.07.2017, p. 147-162.

Research output: Contribution to journalArticleScientificpeer-review

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