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Alongwind dynamic effects on bluff bodies
Author(s) -
Royles Rodney,
Kanda Jun
Publication year - 1988
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1988.tb00003.x
Subject(s) - turbulence , mechanics , wind tunnel , bluff , boundary layer , range (aeronautics) , intensity (physics) , turbulence kinetic energy , constant (computer programming) , static pressure , physics , materials science , mathematics , optics , composite material , computer science , programming language
The dynamic alongwind coefficient has been evaluated by means of a single‐degree‐of‐freedom rectangular cylindrical model in a partial boundary layer wind tunnel. Experimental results show a tendency that the ratio of dynamic alongwind force coefficient to the static one is considerably greater than unity in a low reduced velocity range and increases when the reduced velocity decreases, while it converges to a fairly constant value less than unity when the reduced velocity increases. This tendency can be explained by pressure correlation effects. Although the turbulence intensity and scale were found to have a significant effect on the static coefficient value the ratio of dynamic to static coefficient appears to be insensitive to those turbulence parameters.