Turbulence behind 3D Multi-Scale Sparse Grids

Syed M. Usama; Jackson Tellez-Alvarez; Jacek Kopec; Kamil Kwiatkowski; Jose Manuel Redondo; Nadeem A. Malik

doi:10.1088/1742-6596/1101/1/012048

Turbulence behind 3D Multi-Scale Sparse Grids

Syed M. Usama, Jackson Tellez-Alvarez, Jacek Kopec, Kamil Kwiatkowski, Jose Manuel Redondo, Nadeem A. Malik

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

A fundamentally new idea in grid generated turbulence is the 3D Sparse Grid (3DS) concept [N. A. Malik. Sparse 3D Multi-Scale Grid Turbulence Generator. US Patent No. US 9,599,269 B2 (2017)] which reduces the effective blockage ratio compared to the 2D flat fractal grids, σ _3DS ≪ σ _2DF, and possess a much greater parameter space which could allow further optimization of the turbulence as compared to the 2D fractal (2DF) grids. Here, we report on some theoretical results regarding blockage ratio reduction in a 3-frame 3DS system, and some results from Direct Numerical Simulations comparing the turbulence characteristics generated by 3DS with Regular (RG) and 2DF grids cases.

Original language	English
Article number	012048
Journal	Journal of Physics: Conference Series
Volume	1101
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1101/1/012048
State	Published - 23 Oct 2018

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1742-6596/1101/1/012048

Cite this

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title = "Turbulence behind 3D Multi-Scale Sparse Grids",

abstract = "A fundamentally new idea in grid generated turbulence is the 3D Sparse Grid (3DS) concept [N. A. Malik. Sparse 3D Multi-Scale Grid Turbulence Generator. US Patent No. US 9,599,269 B2 (2017)] which reduces the effective blockage ratio compared to the 2D flat fractal grids, σ 3DS ≪ σ 2DF, and possess a much greater parameter space which could allow further optimization of the turbulence as compared to the 2D fractal (2DF) grids. Here, we report on some theoretical results regarding blockage ratio reduction in a 3-frame 3DS system, and some results from Direct Numerical Simulations comparing the turbulence characteristics generated by 3DS with Regular (RG) and 2DF grids cases.",

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AU - Usama, Syed M.

AU - Tellez-Alvarez, Jackson

AU - Kopec, Jacek

AU - Kwiatkowski, Kamil

AU - Redondo, Jose Manuel

AU - Malik, Nadeem A.

PY - 2018/10/23

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N2 - A fundamentally new idea in grid generated turbulence is the 3D Sparse Grid (3DS) concept [N. A. Malik. Sparse 3D Multi-Scale Grid Turbulence Generator. US Patent No. US 9,599,269 B2 (2017)] which reduces the effective blockage ratio compared to the 2D flat fractal grids, σ 3DS ≪ σ 2DF, and possess a much greater parameter space which could allow further optimization of the turbulence as compared to the 2D fractal (2DF) grids. Here, we report on some theoretical results regarding blockage ratio reduction in a 3-frame 3DS system, and some results from Direct Numerical Simulations comparing the turbulence characteristics generated by 3DS with Regular (RG) and 2DF grids cases.

AB - A fundamentally new idea in grid generated turbulence is the 3D Sparse Grid (3DS) concept [N. A. Malik. Sparse 3D Multi-Scale Grid Turbulence Generator. US Patent No. US 9,599,269 B2 (2017)] which reduces the effective blockage ratio compared to the 2D flat fractal grids, σ 3DS ≪ σ 2DF, and possess a much greater parameter space which could allow further optimization of the turbulence as compared to the 2D fractal (2DF) grids. Here, we report on some theoretical results regarding blockage ratio reduction in a 3-frame 3DS system, and some results from Direct Numerical Simulations comparing the turbulence characteristics generated by 3DS with Regular (RG) and 2DF grids cases.

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Turbulence behind 3D Multi-Scale Sparse Grids

Abstract

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