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Title: Calculation of the time-varying mean velocity by different methods and determination of the turbulence intensities
Authors: Bombar, Gökçen
Güney, Mehmet Şükrü
Tayfur, Gökmen
Elçi, Şebnem
Keywords: Unsteady flow
Data processing
Flow tracker
Instantaneous velocity measurement
Issue Date: 2010
Publisher: Academic Journals
Source: Bombar, G., Güney, M. Ş., Tayfur, G., and Elçi, Ş. (2010). Calculation of the time-varying mean velocity by different methods and determination of the turbulence intensities. Scientific Research and Essays, 5(6), 572-581.
Abstract: The raw velocity data for both stream-wise and transversal directions in unsteady flows, which are formed by generating input hydrograph, are obtained by using a flow tracker. The same hydrograph is generated 15 times and the mean values are found by calculating the average of all hydrographs. The time varying mean is obtained by using FFT, moving average, wavelet and EMD methods. The best time varying mean is selected according to prescribed criteria. Then, the 15 time series are processed and the stream-wise and transversal turbulence intensities are obtained. The mean of the product of fluctuations is also determined. © 2010 Academic Journals.
ISSN: 1992-2248
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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