A hot-film anemometer evaluation of turbulence stimulators¹

Article type: Research Article

Authors: Burns, Joseph A.^a | Murphy, Peter J.^b

Affiliations: [a] Cornell University, Ithaca, New York | [b] Johns Hopkins University, Baltimore, Maryland

Note: [1] Thesis, June 1962, Webb Institute of Naval Architecture.

Abstract: An experimental study has been made to evaluate various common methods of stimulating transition from laminar to turbulent flow in the boundary layer of two five-foot ship models. A hot-film anemometer is employed to determine the nature of the flow in the boundary layer. Qualitative analyses of the results of these hot-film surveys for a strut, sandstrips, pins and Hama Triangles, used separately, are compared with resistance measurements simultaneously taken. The results of this work show that the hot-film anemometer is an effective turbulence detection instrument on small ship models and indicate pins to be the most effective stimulator.

DOI: 10.3233/ISP-1965-1212802

Journal: International Shipbuilding Progress, vol. 12, no. 128, pp. 155-169, 1965