Advertisement

Chinese Journal of Oceanology and Limnology

, Volume 8, Issue 4, pp 348–353 | Cite as

The drift velocity of oil film on the sea

  • Kang Xinglun
Article
  • 26 Downloads

Abstract

To make surface seawater flow, the shear stress of the wind blowing on the sea must overcome the work of cohesion of seawaterW c. Oil film on the sea will drift along the wind direction so long as the shear stress of the wind overcomes the work of adhesion between the water and the oilW a or the work of cohesion of oil Wt,o.\(W_c = 2\sigma _{a,w} W_c = 2\sigma _{a,0} W_{c,o} = 2\sigma _{a,o} \)

Experiments bear out the theory that surface tension of seawater is more than twice that of oils generally, so that the wind influenced drift velocity of the oil film is over two times that of the wind-driven surface current. The wind factor for surface current in Jiaozhou Bay is 0.025, while those for the drift velocities of O-diesel oil film and the used light crude oil film are 0.070 and 0.052 respectively.

Generally the primary factors influencing the movement velocity of oil film on the sea are current, wind, and the physicochemical properties of the oil. The drift velocity of oil film is determined from analysis of the work of adhesion between seawater and oil. Experiments and actual observations agree with the theoretical analysis.

Keywords

Shear Stress Surface Tension Wind Direction Drift Velocity High Tide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Adamson, Arthur W., 1976. Physical Chemistry of Surface. John Wiley & Sons, New York, pp. 61–63. 38–39.Google Scholar
  2. Nunuparov, S. M. (ed.), 1979. Prevention of Pollution of Sea by Ships. 246 pp. (In Russian, Chinese translation).Google Scholar
  3. Petroleum Industry Press, 1960. Applied Handbook of Petroleum Products. Petroleum Industry Press, Beijing, pp. 30 (in Chinese).Google Scholar

Copyright information

© Science Press 1990

Authors and Affiliations

  • Kang Xinglun
    • 1
  1. 1.Institute of OceanologyAcademia SinicaQingdao

Personalised recommendations