simulation
noun
uk/ˌsɪmjəˈleɪʃən/ us [ C ]
a situation or event that seems real but is not real, used especially in order to help people deal with such situations or events:
in a simulation If we can make mistakes in a simulation that keep you from making mistakes in the real world, that definitely saves lives.
a simulation of sth They are carrying out a detailed simulation of how their plan would work.
a computer simulation
[ U ]
the use of situations or events that seem real but are not real, especially in order to help people deal with such situations or events:
through simulation The evaluation of the various design options was done through simulation.