@inproceedings{e1aa14cfa7974a2689a2bdb08242ca9f,
title = "In-situ turbulent boundary layer measurements over freshly cleaned ship-hull under steady cruising",
abstract = "A novel study on assessing the drag penalty due to hull roughness from a recently cleaned and painted ship hull is reported. Here we estimate the rough surface drag penalty by measuring the velocity profile directly over the hull of an operating ship under steady cruising using a Laser Doppler Anemometer (LDA). The novel technique is non-intrusive and requires only optical access and does not require a full hull-penetration. For this experiment a small glass window is placed on the double-bottom hull of an operating ship, allowing the LDA to measure the velocity gradient in the turbulent boundary layer formed over the hull (during steady sailing) across some traversable distance from close to the hull surface, to at least the end of the logarithmic region. Preliminary initial results show that there is an approximate 37% increase in skin-friction drag for a recently cleaned ship-hull compared to the hydrodynamically smoothsurface.",
author = "B. Nugroho and R. Baidya and Nurrohman, {M. N.} and Yusim, {A. K.} and Prasetyo, {F. A.} and M. Yusuf and Suastika, {I. K.} and Utama, {I. K.A.P.} and Monty, {J. P.} and N. Hutchins and B. Ganapathisubramani",
note = "Publisher Copyright: {\textcopyright} 2017: The Royal Institution of Naval Architects; RINA, Royal Institution of Naval Architects - 5th International Conference on Ship and Offshore Technology: Development in Ships Design and Construction, ICSOT 2017 ; Conference date: 04-11-2017 Through 15-11-2017",
year = "2017",
language = "English",
series = "RINA, Royal Institution of Naval Architects - Proceedings of 5th International Conference on Ship and Offshore Technology, ICSOT 2017: Development in Ships Design and Construction",
publisher = "Royal Institution of Naval Architects",
pages = "26--35",
booktitle = "RINA, Royal Institution of Naval Architects - Proceedings of 5th International Conference on Ship and Offshore Technology, ICSOT 2017",
address = "United Kingdom",
}