Wind Forces Measured on a Tall R.C. Chimneyby Roger I. Basu, MIL Systems Engineering Inc, Ottawa, Ont, Can,
Alan G. Davenport, MIL Systems Engineering Inc, Ottawa, Ont, Can,
Document Type: Proceeding Paper
Part of: Dynamics of Structures
This paper describes some aspects of an analysis performed on measurements of a variety of parameters relating to the wind, wind forces on and the response of a tall chimney. The results presented include the profiles of the mean and fluctuating wind, characteristics of the mean and fluctuating sectional forces on the chimney, and the chimney's response. Comparisons are made with theoretical predictions. The mean wind profile is well described by the log law. The fluctuating lift coefficient is lower than might be expected, and this is attributed to the low level of turbulence and the relative absence of small-scale turbulence. An interesting example of wake-induced effects (from an identical chimney in the vicinity of the subject chimney) is described.
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