Abstract
It is shown that under certain flow conditions, surface renewal cannot be understood as an exclusive result of the bursting occurring near the wall, as proposed by several authors. Flow visualization in the bulk of the fluid and at the free surface are used in conjunction with filtered turbulence measurements to identify large streamwise vortices as an important transport mechanism in the bulk of the flow. Surface photos indicate that the momentum of the upwelling of large coherent flow structures should not be discounted as an important mechanism of surface renewal through replacement and thinning of the concentration boundary layer near the free surface.
| Original language | English (US) |
|---|---|
| Title of host publication | Air-Water Mass Transfer |
| Publisher | Publ by ASCE |
| Pages | 126-139 |
| Number of pages | 14 |
| ISBN (Print) | 0872628469 |
| State | Published - Jan 1 1991 |
| Event | 2nd International Symposium on Gas Transfer at Water Surfaces - Minneapolis, MN, USA Duration: Sep 11 1990 → Sep 14 1990 |
Other
| Other | 2nd International Symposium on Gas Transfer at Water Surfaces |
|---|---|
| City | Minneapolis, MN, USA |
| Period | 9/11/90 → 9/14/90 |