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Purpose
To provide an accurate analysis of the systematic error introduced by the constant time technique free flight mechanism, due to the choice of the time step and number particles.
Design/methodology/approach
A homogeneous (bulk) silicon semiconductor is studied by using direct simulation Monte Carlo (DSMC).
Findings
The systematic error turns out to be of the first order with respect to the time step. The efficiency of the method is tackled.
Research limitations/implications
The analysis is limited to the bulk case. Future researches will consider non homogeneous devices
Originality/value
An accurate analysis of an “old” free flight mechanism has been performed, and its limits have been stated.
© Emerald Group Publishing Limited
2005
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