Table 1. Simulated Surface Accommodation Coefficients According to Equation 1 and Restrictions for the Value of the Bulk Accommodation Coefficient.
molecule | target surface | αsa | αba |
---|---|---|---|
adipic acid | planar, solid/semisolid | 0.96 ≤ αs ≤ 1 | 0.25 ≤ αb ≤ 1 |
cluster, direct hit | 0.96 ≤ αs ≤ 1 | 0.14 ≤ αb ≤ 1 | |
cluster, nondirect hit | 0.96 ≤ αs ≤ 1 | 0.19 ≤ αb ≤ 1 | |
succinic acid | solid/semi-solid | 0.96 ≤ αs ≤ 1 | 0.22 ≤ αb ≤ 1 |
naphthalene | subcooled liquid | 0.96 ≤ αs ≤ 1 | 0.76 ≤ αb ≤ 1 |
nonane | liquid | 0.96 ≤ αs ≤ 1 | ∼0.5b ≤ αb ≤ 1 |
The lower limits for both αs and αb correspond to binomial 95% confidence intervals. The results on the accommodation of nonane are a combination of molecular dynamics simulations and experimental data.
Based on the experimental data only and depends on saturation vapor pressure used.