Hydrocodes » Two Phase Reactive Flow
If we consider heterogeneous systems such as dust in air , there is the possibility of flame propagation and detonation where the combustion of the individual particles is the dominant mechanism. In many cases these particles are free to move at different velocities from the surrounding gases. Heat mass and momentum transfer between the phases needs to be accurately modelled. We have developed our codes to include the detailed two phase terms as well as the range of combustion models described above. We have tested our codes against a range of experiments. One example is the detonation of a cloud of small Aluminium particles in a cylinder of pure oxygen. The ambient atmosphere is air. A significant amount of energy is required to drive this system to detonation and the movie shows the development of the two phase combustion driven by a cylindrical booster charge of 125 g TNT.