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Advantages

• It can avoid danger and loss of life.
• Conditions can be varied and outcomes investigated.
• Critical situations can be investigated without risk.
• It is cost effective.
• Simulations can be sped up so behaviour can be studied easily over a long period of time.
• Simulations can be slowed down to study behaviour more closely.

Disadvantages

• It can be expensive to measure how one thing affects another, to take the initial measurements and to create the model itself (such as aerodynamic wind tunnels).
• To simulate something, a thorough understanding is needed and an awareness of all the factors involved. Without this, a simulation cannot be created.