How does simulation help engineers study a proposed system?

In engineering, simulation allows engineers to study a proposed system by creating a mathematical model that represents the system's dynamic responses and functional relationships. By running these models as computer programs, engineers can observe how the entire system performs when individual components or variables are altered.1

Simulation provides several critical advantages for studying proposed designs:

• Safety and Feasibility: It enables the study of systems under conditions that would be unsafe, impractical, or too costly to replicate in the real world, such as testing structures for stress or simulating nuclear events.12
• Efficiency and Cost-Savings: By using "dry lab" experiments, engineers can test designs—such as automotive wind-tunnel performance—without the need for expensive physical prototypes.2
• Time Compression: Simulation can accelerate processes that would take hours or eons in real time, allowing researchers to observe long-term effects in minutes.2
• Predictive Analysis: Engineers can evaluate performance using stochastic variables, which change randomly over time, to gain deeper insights into system reliability and behavior.3