Author(s): S. Schimmels; M. Markofsky
Linked Author(s): Stefan Schimmels
Keywords: No Keywords
Abstract: In the Baltic Sea density currents from the North Sea play an important role for the ecological balance. Motivated by the planning of offshore wind farms in the Baltic Sea the mixing of these currents by vertical cylindrical piles is addressed by means of detailed numerical simulations. Neglecting the effect of Coriolis forces the flow is basically governed by the Froude Number Fr and the aspect ratio of the current depth and cylinder diameter D/d. The three-dimensional flow field around the cylinder is analyzed and the local entrainment rates as well as the bulk flux Richardson number are presented. Finally, the total impact of offshore wind farms is assessed.
Year: 2009