The IMPACT testing facility has been built to investigate
the impact of deformable missiles on concrete structures
. The test facility is designed for medium scale tests
the maximum missile weight of 50 to 100 kg depending on
the missile velocity in the range 100 to 200 m/s. The
Impact project is mainly concentrated to the research of
soft missile impacts on concrete walls, but also several
tests have been carried out using hard steel missiles.
The main purpose of the project is to produce data for
verifying and developing numerical models and methods.
This work has been carried out within the SUSI project
The spread of liquid fuel as a result of an intentional
or accidental aircraft crash may cause a sudden fire with
hazardous effects on the safety of the NPP. The spread
phenomena have been studied at VTT in the IMPACT tests
where the missile is filled by water (called wet missile
tests) . The goals of the study are to increase a
general knowledge of the liquid dispersion phenomena
under impact conditions, measure the most important test
parameters to be used in validation of simulation
techniques, and take in use and validate suitable
simulation methods than can be used for the determination
of fuel spread and fire risk following an airplane crash.
The Fire Dynamics Simulator (FDS) program is found to be
a useful tool for the problem, and the program will be
applied in future also.
|Title of host publication||SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 |
|Subtitle of host publication||Interim Report |
|Place of Publication||Espoo|
|Publisher||VTT Technical Research Centre of Finland|
|Publication status||Published - 2009|
|MoE publication type||Not Eligible|
|Series||VTT Tiedotteita - Research Notes|