There are a number of reasons determining the urgency of the problem. Firstly, this is fire safety and blast-proofness of residential and industrial constructions, secondly, the impact of blast waves on people. Upon exceeding certain overpressure standards, this impact may result in hearing damage, tissue lesion and even death.
    Another important factor is terrorism. Nowadays there exist a great number of ammunition depots, nuclear wastes dumps and chemical and bacteriological weapons storages. On the one hand, it is necessary to have an assessment of blast load impact on depot constructional elements to be able to design constructions with sufficient strength characteristics (in this case this can be done only by applying methods of gas dynamics). On the other hand, a low-capacity blast may disable the terrorist. In the last case the explosion should be strong enough to put terrorists out of action but at the same time it should not damage the container case or activate detonators.

  • Gas explosion in a standard apartment

    Gas explosion in a standard apartment. Computation resultsGas explosion in a standard apartment. Computation resultsGas explosion in a standard apartment. Computation resultsGas explosion in a standard apartment. Computation results
    Gas explosion in a standard apartment. Experimental dataGas explosion in a standard apartment. Experimental dataGas explosion in a standard apartment. Experimental dataGas explosion in a standard apartment. Experimental data

         Numerical simulation has been accomplished for an actual size object. There was an ideal detonation mode preset for oxyhydrogen mixture, filling the kitchen. The figure represents the computation results comparison in the form of the density gradient fields for the same points of time when the experimental shaded shooting of the process has been carried out.


  • Fuel-air explosion inside the building

    Fuel-air explosion inside the building
    Animation (672 Kb)
    672 Kb

        Computation results are given for fuel-air explosion inside the building. Pressure distribution is shown.



  • Detonation of a charge with star configuration near the building

    Detonation of a charge with star configuration near the building
    Animation (604 Kb)
    604 Kb

         Numerous experimental and computational investigations are being carried out to analyse the degree of tolerance of constructional elements to blast loads during man-caused disasters and terrorist acts. As an example of such a computation carried out with the help of the GDT package we present the computation results for the detonation of a charge with star configuration near the building. Courtesy of Dr. M.R. Baer, Sandia National Laboratories, USA.