Direct Numerical Simulation in Two Dimensional Homogeneous Isotropic Turbulence Using Spectral Method

Authors

  • M. S. I. Mallik Ahsanullah University of Science and Technology, Dhaka
  • M. A. Uddin Ahsanullah University of Science & Technology
  • M. A. Rahman Shahjalal University of Science & Technology,

Keywords:

Direct numerical simulation, Isotropic turbulence, Spectral method.

Abstract

Direct numerical simulation (DNS) in two-dimensional homogeneous isotropic turbulence is performed by using the Spectral method at a Reynolds number Re = 1000 on a uniformly distributed grid points. The Reynolds number is low enough that the computational grid is capable of resolving all the possible turbulent scales. The statistical properties in the computed flow field show a good agreement with the qualitative behavior of decaying turbulence. The behavior of the flow structures in the computed flow field also follow the classical idea of the fluid flow in turbulence.

Keywords: Direct numerical simulation, Isotropic turbulence, Spectral method.

© 2013 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.

doi:http://dx.doi.org/10.3329/jsr.v5i3.12665 J. Sci. Res. 5 (3), 435-445 (2013)

 

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Author Biographies

M. S. I. Mallik, Ahsanullah University of Science and Technology, Dhaka

Assistant Professor of Mathematics, Department of Arts & Sciences, Ahsanullah University of Science and Technology, Dhaka

M. A. Uddin, Ahsanullah University of Science & Technology

Professor of Mathematics, Department of Arts & Sciences, Ahsanullah University of Science and Technology, Dhaka.

M. A. Rahman, Shahjalal University of Science & Technology,

Department of Mathematics, Shahjalal University of Science & Technology. Sylhet-3114

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Published

2013-08-28

How to Cite

Direct Numerical Simulation in Two Dimensional Homogeneous Isotropic Turbulence Using Spectral Method. (2013). Journal of Scientific Research, 5(3), 435-445. https://doi.org/10.3329/jsr.v5i3.12665

Issue

Vol. 5 No. 3 (2013)

Section

Section A: Physical and Mathematical Sciences

License

© Journal of Scientific Research

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How to Cite

Direct Numerical Simulation in Two Dimensional Homogeneous Isotropic Turbulence Using Spectral Method. (2013). Journal of Scientific Research, 5(3), 435-445. https://doi.org/10.3329/jsr.v5i3.12665