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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v26.i5-6.10
pages 526-538

Induced Wall Vibrations in Air-Dynamics for Energy Saving

G. Nicoletti
Dipartimento di Meccanica Universita della Calabria - 87030 Arcavacata di Rende (CS), Italy

ABSTRAKT

The problem of vibratory interaction between a fluid and a body or a lapped wall has grown constantly in the last forty years. The said interaction is of basic technical interest to improve knowledge of turbulence mechanisms; and is of technological interest connected to the increase in fluid-wall heat exchange or to the reduction of fluid-dynamic drag or to the effects of fatigue in lapped structures.
This paper, after a critical discussion on the state of the art with an attempt to ratify and classify the studies examined, reports on some vibratory disturbance tests to a wall in air flow conditions. Their substance lies in the identification of the motion regime and of the turbulent energy spectrum within the flow, in the area of the testing section of the wall, with and without vibrations. The above-mentioned tests complete and integrate with those obtained by the author on water flow using the same wall activation equipment, (Nicoletti, 1996).


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