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Journals / Journal of Eta Maritime Science / 2019 / Cilt: 7 - Sayı: 4

A CFD Study On the Hydrodynamic Characteristics of the Antifouling Paints

Antifouling Boyaların Hidrodinamik Özellikleri Üzerine Bir HAD Çalışması

Utku cem KARABULUT
Yavuz hakan ÖZDEMİR
Barış BARLAS
Pages
318–331
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results are in good agreement with the previous experimental and numerical studies.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This paper presents a computational fluid dynamics (CFD) approach which can be used to investigate the hydrodynamic performances of various antifouling paints.
📊
Key Findings & Data:Steady Reynolds - Averaged - Navier - Stokes (RANS) equations were solved for the flows around a flat plate at Reynolds number of 2,8×106 and 5,5×106 .
💡
Conclusion & Impact:Results are in good agreement with the previous experimental and numerical studies.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

This paper presents a computational fluid dynamics (CFD) approach which can be used to investigate the hydrodynamic performances of various antifouling paints. Steady Reynolds - Averaged - Navier - Stokes (RANS) equations were solved for the flows around a flat plate at Reynolds number of 2,8×106 and 5,5×106 . The surface roughness effects were modelled as downward shift of the velocity profile at the log – law region of the boundary layer. Granville’s similarity law was used to extrapolate the results for a full scale ship. Results are in good agreement with the previous experimental and numerical studies.

Özet

Bu çalışmada, çeşitli antifouling boyaların hidrodinamik performanslarını incelemek için kullanılabilecek bir hesaplamalı akışkanlar dinamiği (HAD) yaklaşımı sunulmaktadır. Düz bir levhanın etrafında gelişen, Reynolds sayısı 2,8×106 ve 5,5×106 olan akışları modellemek üzere, zamandan bağımsız zaman ortalamalı Navier Stokes (RANS) denklemleri çözülmüştür. Yüzey pürüzlülüğünün etkileri, sınır tabakanın logaritmik yasa bölgesindeki hız profilinde aşağı kayma olarak modellenmiştir. Tam ölçekli bir gemiye ait sürtünme direnci sonuçlarını tahmin etmek üzere Granville’nin benzerlik yasasından faydalanılmıştır. Sonuçlar daha önceki deneysel ve sayısal çalışmalar ile uyum içerisindedir.

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Cite This Article

KARABULUT, U. C., ÖZDEMİR, Y. H., BARLAS, B. (2019). A CFD Study On the Hydrodynamic Characteristics of the Antifouling Paints. Journal of Eta Maritime Science, Cilt: 7 - Sayı: 4, 318–331. https://ajindex.com/articles/175008

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References (13)

  1. United Nations Conference on Trade and Development (UNCTAD) (2017). Review of Maritime Transport
  2. International Maritime Organisation (IMO) (2009). Report of the Marine Environment Protection Committee in its Fifty-Ninth Session. MEPC 59/24
  3. Longva T., Eide M. S., Skjong, R. (2010). Determining a required energy efficiency design index level for new ships based on a cost-effectiveness criterion, Maritime Policy & Management, 37:2, 129-143, DOI: 10.1080/03088830903533759 [4] Molland A.F., Turnock S.R., Hudson D.A. (2011). Ship resistance and propulsion: practical estimation of ship propulsive power. New York: Cambridge University Press
  4. Lackenby, H. (1962). Resistance of ships with special reference to skin friction and hull surface condition, The 34th Thomas Lowe Grey Lecture, Proceedings of the Institute of Mechanical Engineers, Vol. 176, pp. 981-1014
  5. Froude, W. (1872). Experiments on the surface-friction experienced by a plane moving through water. British Association for the Advancement of Science. The Collected Papers of William Froude, Institution of Naval Architects, 1955; p. 138–146
  6. Froude, W. (1874). Report to the lords commissioners of the admiralty on experiments for the determination of the frictional resistance of water on a surface, under various conditions, performed at Chelston cross, under the authority of their lordships. 44th Report by the British Association for the Advancement of Science
  7. McEntee, W. (1915). Variation of frictional resistance of ships with condition of wetted surface. Trans Soc Nav Arch Mar Eng. 24:37–42
  8. Candries, M., Atlar, M., Anderson, C.D. (2001). Foul Release systems and drag. Consolidation of Technical Advances in the Protective and Marine Coatings Industry; Proceedings of the PCE 2001 Conference, pp. 273-286. Antwerp
  9. Schultz, M. P., (2002). The Relationship Between Frictional Resistance and Roughness for Surfaces Smoothed by Sanding, ASME J. Fluids Eng., 124, pp. 492–499
  10. Schultz, M.P. (2004). Frictional Resistance of Antifouling Coating Systems. ASME J. Fluids Eng. 126, 1039-1047
  11. Grigson, C.W.B. (1992). Drag losses of new ships caused by hull finish. J.ShipRes. 36, 182–196
  12. Nikuradse, J., (1933). Laws of Flow in Rough Pipes. NACA Technical Memorandum 1292
  13. Atlar, M., Unal, B., Unal, U.O., Politis, G., Martinelli, E., Galli, G. Davies, C., Williams, D. (2012). An experimental investigation of the frictional drag characteristics of nanostructured and fl