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International Journal of Fluid Mechanics Research
Atle Jensen (open in a new tab) Department of Mathematics, University of Oslo, N-0316 Oslo, Norway
Valery Oliynik (open in a new tab) Institute of Hydromechanics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
Victor T. Grinchenko (open in a new tab) Institute of Hydromechanics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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

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Numerical Study of Flow over Ahmed Body and a Road Vehicle and the Change in Aerodynamic Characteristics Caused by Rear Spoiler

pages 354-372
DOI: 10.1615/InterJFluidMechRes.v40.i4.50
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ABSTRACT

With high-speed automobiles much more common nowadays, reducing the lift coefficient to enhance stability on the road is no longer just a concern for race cars. Spoilers are one of the well-known devices for producing down force on a moving vehicle. The aim of this study was to simulate three-dimensional turbulent flow over both a simple car model and a real road vehicle. Flow pattern and the results for aerodynamic forces were in good agreement with experimental results. In addition, the same method was used to investigate the effect of numerous rear-spoilers on lift and drag coefficients of the models. We obtained significant reduction in lift and drag on the models. The popular k−ω SST turbulence model was used to assess aerodynamic forces, as well as pressure and velocity distribution. This study provides a good comparison between different types of spoilers, making it easier to determine an optimum model.

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