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Measurements Near the Stern of a Ship Model

Lennart Löfdahl (Institutionen för tillämpad termodynamik och strömningslära) ; Lars Larsson (Institutionen för skeppshydromekanik)
Journal of Ship Research Vol. 28 (1984), 3, p. 186-201.
[Artikel, refereegranskad vetenskaplig]

An experimental investigation in which Reynolds stress profiles were measured in the thick three-dimensional turbulent boundary layer at the stern of a ship model has been carried out. The measurements were performed using a specially developed hot-wire technique in which the mean velocity component perpendicular to the surface was considered. A large number of results are given in diagrams, and an error estimation for the different Reynolds stresses is presented. Effort have been made, when positioning the measured turbulence profiles, to enable future development of calculation methods based on these results. The measured profiles have revealed a strong influence of streamline convergence (divergence) on the Reynolds stresses. Also, the effects of wall curvature are of importance, and since most parts of the investigated religions have a convex curvature the average level of the stresses is reduced.



Denna post skapades 2010-08-23. Senast ändrad 2015-05-08.
CPL Pubid: 125044

 

Institutioner (Chalmers)

Institutionen för tillämpad termodynamik och strömningslära (1957-1989)
Institutionen för skeppshydromekanik (1970-1984)

Ämnesområden

Strömningsmekanik

Chalmers infrastruktur