Simulation vs Simulational - What's the difference?

As a noun simulation

is simulation.

of or pertaining to simulation.

(wikipedia simulation)

(en noun)

Something which simulates a system or environment in order to predict actual behaviour.''

This exercise is a simulation of actual battle conditions.

The most reliable simulation predicts that the hurricane will turn north.

The process of simulating.

Despite extensive simulation in the design phase, the aircraft failed to behave as expected.

Assuming an appearance which is feigned, or not true.

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(soccer) The act of falling over in order to be awarded a foul, when a foul hasn't been committed.

* '>citation

* computer simulation

(-)

Of or pertaining to simulation