An explosion is a rapid and violent release of energy, usually accompanied by a loud noise, heat, and pressure waves. Explosions can be caused by a variety of factors such as chemical reactions, combustion, nuclear reactions, or mechanical failure. Explosions can cause severe damage to buildings, infrastructure, and human life. To minimize the impact of such incidents, accurate and reliable simulation of explosions is crucial. Explosion simulation involves modeling the complex interactions of blast waves, shock waves, and debris with the surrounding environment. By simulating explosions, engineers and scientists can identify potential risks and develop effective safety measures. In this package, you will learn how to model explosions in different situations with practical examples, such as Air blast explosion simulation inside an RC room and Subsurface explosion simulation on buried steel pipelines.