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International Journal of Fluid Mechanics Research

Published 6 issues per year

ISSN Print: 2152-5102

ISSN Online: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

TURBULENT WAKES BEHIND BED-MOUNTED HEMISPHERES IN CO-EXISTING SURFACE WAVE

Volume 44, Issue 2, 2017, pp. 169-183
DOI: 10.1615/InterJFluidMechRes.2017017342
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ABSTRACT

The objective of this research is to examine the turbulent flow characteristics at the wake region of artificial single and dual hemispheres fixed to the bottom wall of an open channel under wave and current interaction. The effect of surface wave on the mean velocity, turbulence intensities, and Reynolds shear stress profiles over hemispherical obstacles has been presented in this paper. All three velocity components with fluctuations were measured using 3D micro-acoustic Doppler velocimeter. The study was carried out at the submergence ratio, h/h' = 7.1 where h = flow depth and h' = obstacle height and three different wave frequencies f = 0.5, 1, and 2 Hz, respectively. On the basis of quadrant analysis, the contribution of stress fractions to the Reynolds shear stress corresponding to each quadrant event at the wake region of hemispheres is presented to evaluate the turbulent bursting events. Furthermore, the power spectral density for the velocity fluctuation was analyzed to evaluate the distribution of energy at the different scales of fluctuation.

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