Table 2 Comparison of experimental and simulated contact angles.
From: A numerical solution to the effects of surface roughness on water–coal contact angle
Coal sample | Optical images | Simulated images |
|---|---|---|
Hami lignite |
|
|
45.9° | 46.5° | |
Anyang coking coal |
|
|
113.8° | 114.1° | |
Zhaogu anthracite |
|
|
82.2° | 82.9° |
