Numerical simulation of processes or events allows the customer to assess the behaviour, and quantify the performance of his design under different operational working and ambient conditions or extreme events. With today’s total cost of computer simulation, numerical simulation does not aim to replace final prototype acceptance testing, but at accelerating the design process and reducing the prototyping costs by offering a virtual test bench to the designer.
However, there are design questions which can only be handled efficiently by numerical simulation; those for which prototyping is not an option because of the scale factor. In such cases numerical simulation intends to reduce the cost of expensive and time consuming scale tests in very specialised laboratories.
Finally, there is also a class of tests which cannot be performed on prototypes or scale models and for which numerical simulation is the only option: extreme conditions and catastrophic events.