1. Research Engineer, DHI, Agern Alle 5, 2970 Hørsholm, Denmark; formerly, Ph.D. Student, Technical Univ. of Denmark, DTU Mekanik, Section for Fluid Mechanics, Coastal and Maritime Engineering, 2800 Kongens Lyngby, Denmark (corresponding author).
2. Professor, Technical Univ. of Denmark, DTU Mekanik, Section for Fluid Mechanics, Coastal and Maritime Engineering, 2800 Kongens Lyngby, Denmark.
3. Offshore Engineer, Rambøll Oil and Gas, Hannemanns Allé 53, DK-2300 Copenhagen S, Denmark; formerly, Technical Univ. of Denmark, DTU Mekanik, Section of Coastal, Maritime and Structural Engineering, 2800 Kongens Lyngby, Denmark.
4. Associate Professor, Technical Univ. of Denmark, DTU Mekanik, Section for Fluid Mechanics, Coastal and Maritime Engineering, 2800 Kongens Lyngby, Denmark.