##
Monte Carlo method

0104102-148

**[DEFINITION]**

In modeling and simulation, any method that employs Monte Carlo
simulation in which random statistical sampling techniques are employed such that the result
determines estimates for unknown values．

**[DESCRIPTION]**

Monte Calro method is used, for example, for simulation of
collision of gas molecules onto solid surface. In this method, molecules are sampled randomly from
the huge number of gas molecules existing in the objective region of computation, and their motion
is analyzed according to the law of probabilities to determine the flow field. Recently, the
technique has advanced and is called the direct simulation Monte Carlo method, which can treat
collisions of gas molecules not only against solid surface but also with each other.

**[References]**

(54)

**[Related Terms]**

Molecular gas dynamics