Abstract
The formation of oil droplet from an oil slick in rivers plays an important role in the transport and fate of oil. We provided a means to compute the mixing energy (energy dissipation rate) in streams, which is needed to estimate oil dispersion in streams. The formulation allows on to estimate the mixing properties of a stream based on easily measurable quantities, such as stream slope, average water speed, and the roughness coefficient. By assuming a roughness height at the streambed, one could also predict the value of the local energy dissipation rate at various depths. The formulation provides also a direct relation between the energy dissipation rate and the shear stress at the bottom of the stream. An example is provided for illustration, and it shows that for a stream that is 30 m wide and has a natural slope of 1/1000, the average energy dissipation rate is equal to 0.001 watt/kg and the maximum value is at the streambed and is around 0.01 watt/kg. The latter value is comparable to spilling breakers of 0.30 m high waves.
Original language | English (US) |
---|---|
Pages | 429-433 |
Number of pages | 5 |
State | Published - 2016 |
Event | 39th AMOP Technical Seminar on Environmental Contamination and Response - Halifax, Canada Duration: Jun 7 2016 → Jun 9 2016 |
Other
Other | 39th AMOP Technical Seminar on Environmental Contamination and Response |
---|---|
Country/Territory | Canada |
City | Halifax |
Period | 6/7/16 → 6/9/16 |
All Science Journal Classification (ASJC) codes
- Environmental Engineering
- Waste Management and Disposal
- Pollution