Direct Numerical Simulation of a Jet Issuing from Rectangular Nozzle by the Vortex in Cell Method - Open Journal of Fluid Dynamics

OJFD > Vol.3 No.4, December 2013

Open Journal of Fluid Dynamics

Volume 3, Issue 4 (December 2013)

ISSN Print: 2165-3852 ISSN Online: 2165-3860

Google-based Impact Factor: 0.63 Citations h5-index & Ranking

Direct Numerical Simulation of a Jet Issuing from Rectangular Nozzle by the Vortex in Cell Method ()

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Download as PDF (Size: 5071KB) PP. 321-330

DOI: 10.4236/ojfd.2013.34039 4,154 Downloads 6,511 Views Citations

Author(s)

Tomomi Uchiyama, Masahiro Kobayashi, Shouichiro Iio, Toshihiko Ikeda

Affiliation(s)

EcoTopia Science Institute, Nagoya University, Nagoya, Japan.
Faculty of Engineering, Shinshu University, Nagano, Japan.
Graduate School of Information Science, Nagoya University, Nagoya, Japan.

ABSTRACT

Direct numerical simulation of a jet issuing from a nozzle having a rectangular cross-section is conducted. The vortex in cell (VIC) method, of which computational accuracy was heightened by the authors in a prior study, is used for the DNS. The aspect ratio of the nozzle cross-section is 15, and the Reynolds number based on the shorter side length of the nozzle exit is 6700. The turbulence statics, such as the mean velocity and the turbulence intensity, are favorably compared with the experimentally measured results. The behavior of the large-scale eddies as well as the development of the turbulent flow is also confirmed to agree with the measurement. These indicate that the authors’ VIC method is successfully employed for the DNS of rectangular jet.

KEYWORDS

Rectangular Jet; Vortex in Cell Method; DNS; Vortical Structure

Share and Cite:

Uchiyama, T. , Kobayashi, M. , Iio, S. and Ikeda, T. (2013) Direct Numerical Simulation of a Jet Issuing from Rectangular Nozzle by the Vortex in Cell Method. Open Journal of Fluid Dynamics, 3, 321-330. doi: 10.4236/ojfd.2013.34039.

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