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Numerical and Experimental Investigation of Roughness Due to Different Type of Coating

Numerical and Experimental Investigation of Roughness Due to Different Type of Coating

Category
Conference lecture and academic presentation
Abstract
Effect of roughness on frictional resistance is investigated experimentally and numerically. Resistance tests are performed with several plates coated with different paints, which have different roughness. Front plate is 4 m long and aft plates are 6 m long resulting in a total hydrodynamic length of 10 m. Tests are conducted at different speeds up to 9 m/s covering a large range of Reynolds numbers. Numerical calculation of frictional resistance is performed for the same roughness as tested in the towing tank. Special wall function and numerical procedure is implemented for this purpose. Plates are 3D scanned and their roughness is categorized by several parameters, not only traditional roughness height. Numerical and experimental results are compared and discussed.
Client
  • EC/FP7 / 612717
Language
English
Affiliation
  • SINTEF Ocean / Skip og havkonstruksjoner
Presented at
2nd Hull Performance & Insight Conference
Date
26.03.2017 - 28.03.2017
Year
2017