Abstract
By direct numerical simulation (DNS) of the flow in an oscillatory boundary layer, it is possible to obtain the pressure field. From the latter, the vertical pressure gradient is determined. Turbulent spots are detected by a criterion involving the vertical pressure gradient. The vertical pressure gradient is also treated as any other turbulence quantity like velocity fluctuations and statistical properties of the vertical pressure gradient are calculated from the DNS data. The presence of a vertical pressure gradient in the near bed region has significant implications for sediment transport.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 34th International Conference on Coastal Engineering |
| Number of pages | 13 |
| Publisher | ICCE2014 Secretariat |
| Publication date | 2014 |
| Publication status | Published - 2014 |
| Event | 34th International Conference on Coastal Engineering - Seoul, Korea, Republic of Duration: 15 Jun 2014 → 20 Jun 2014 Conference number: 34 http://icce2014.com/home/ |
Conference
| Conference | 34th International Conference on Coastal Engineering |
|---|---|
| Number | 34 |
| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 15/06/2014 → 20/06/2014 |
| Internet address |
Keywords
- Wave boundary layers
- Turbulence
- Vertical pressure gradient
- DNS
- Transition to turbulence