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Experimental investigation of the turbulent boundary layer of surfaces coated with marine antifoulings

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Abstract
Turbulent boundary-layer measurements have been carried out on flat surfaces coated with two different new generation marine antifoulings. The coatings were applied on 1-m-long test sections that were fitted in a 2.1-m-long flat plate setup. The measurements were carried out in two different recirculating water tunnels by means of two-component laser Doppler velocimetry and were compared with measurements of a smooth steel reference surface and a surface covered with sand grit. Both coatings exhibited an increase in frictional resistance compared to the reference surface, but the increase was significantly smaller for the Foul(ing) Release coatings than for the Tin-free SPC coating. The coatings did not significantly affect the boundary-layer thickness. When expressed in inner variables, the coatings did not have an effect on the turbulence intensity profiles, but when expressed in outer variables, the coatings affected the near-wall turbulence intensities.
Keywords
ROUGH-WALL, SMOOTH-WALL, antifouling, roughness, wall roughness, boundary layer, marine coatings, drag, foul release, PRESSURE, FRICTION

Citation

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Chicago
Candries, Maxim, and Mehmet Atlar. 2005. “Experimental Investigation of the Turbulent Boundary Layer of Surfaces Coated with Marine Antifoulings.” Journal of Fluids Engineering-transactions of the Asme 127 (2): 219–232.
APA
Candries, M., & Atlar, M. (2005). Experimental investigation of the turbulent boundary layer of surfaces coated with marine antifoulings. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 127(2), 219–232.
Vancouver
1.
Candries M, Atlar M. Experimental investigation of the turbulent boundary layer of surfaces coated with marine antifoulings. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME. 2005;127(2):219–32.
MLA
Candries, Maxim, and Mehmet Atlar. “Experimental Investigation of the Turbulent Boundary Layer of Surfaces Coated with Marine Antifoulings.” JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME 127.2 (2005): 219–232. Print.
@article{1041535,
  abstract     = {Turbulent boundary-layer measurements have been carried out on flat surfaces coated with two different new generation marine antifoulings. The coatings were applied on 1-m-long test sections that were fitted in a 2.1-m-long flat plate setup. The measurements were carried out in two different recirculating water tunnels by means of two-component laser Doppler velocimetry and were compared with measurements of a smooth steel reference surface and a surface covered with sand grit. Both coatings exhibited an increase in frictional resistance compared to the reference surface, but the increase was significantly smaller for the Foul(ing) Release coatings than for the Tin-free SPC coating. The coatings did not significantly affect the boundary-layer thickness. When expressed in inner variables, the coatings did not have an effect on the turbulence intensity profiles, but when expressed in outer variables, the coatings affected the near-wall turbulence intensities.},
  author       = {Candries, Maxim and Atlar, Mehmet},
  issn         = {0098-2202},
  journal      = {JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME},
  language     = {eng},
  number       = {2},
  pages        = {219--232},
  title        = {Experimental investigation of the turbulent boundary layer of surfaces coated with marine antifoulings},
  url          = {http://dx.doi.org/10.1115/1.1891148},
  volume       = {127},
  year         = {2005},
}

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