The experimental and theoretical research on vapor cloud explosions, performed at TNO Prins Maurits Laboratory, is discussed within the framework of the simple model for explosion blast prediction, the Multi-Energy Method. This research is focused on the influence of obstacles and confinement present in the vapor cloud on flame acceleration and overpressure production. This led to the development of the CFD code for reactive mixtures REAGAS3D. The research is mainly performed within multi-sponsor projects and is carried out in collaboration with other laboratories from various European countries.

Further, the effect of vapor cloud explosions on constructions are discussed. The 3Dcode ABAQUS is used to quantify these effects.