Molecular Dynamics Studies of Thermal Accommodation on Carbon Structures

摘要

Thermal accommodation coefficient (α_E) for the nitrogen-carbon gas surface collisions is calculated as a cumulative distribution function using the ReaxFF molecular dynamics package. Generated cumulative distribution functions are then used to modify Maxwell's gas surface interaction model in the DSMC package SMILE and the influence of thermal accommodation coefficient on the flow field is analyzed by simulating a flow over a flat plate using the modified Maxwell's GSI model.