Second-moment calculation procedure for turbulent flows with collocated variable arrangement

Shinnosuke Obi; Georg Scheuerer; Milovan Perić

doi:10.2514/3.10624

Second-moment calculation procedure for turbulent flows with collocated variable arrangement

Shinnosuke Obi, Georg Scheuerer, Milovan Perić

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

The paper presents a finite-volume calculation procedure using second-moment turbulence closure. A special interpolation technique is employed in connection with a collocated variable arrangement to avoid oscillatory solutions that might otherwise result from inappropriate coupling of the mean velocity, pressure, and Reynolds stress fields. The apparent diffusion fluxes arising from the interpolation procedure ensure numerical stability of the iterative solution process. The application of the second-moment closure model to backward-facing step flows yields slightly improved results as compared with k-ε model predictions. Shortcomings of the current second-moment model are an overproportionally large damping of normal stresses due to inadequacies in the modeling of the pressure-strain terms and the predicted behavior in the reattachment region.

Original language	English
Pages (from-to)	585-590
Number of pages	6
Journal	AIAA journal
Volume	29
Issue number	4
DOIs	https://doi.org/10.2514/3.10624
Publication status	Published - 1991 Apr
Externally published	Yes

ASJC Scopus subject areas

Aerospace Engineering

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10.2514/3.10624

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title = "Second-moment calculation procedure for turbulent flows with collocated variable arrangement",

abstract = "The paper presents a finite-volume calculation procedure using second-moment turbulence closure. A special interpolation technique is employed in connection with a collocated variable arrangement to avoid oscillatory solutions that might otherwise result from inappropriate coupling of the mean velocity, pressure, and Reynolds stress fields. The apparent diffusion fluxes arising from the interpolation procedure ensure numerical stability of the iterative solution process. The application of the second-moment closure model to backward-facing step flows yields slightly improved results as compared with k-ε model predictions. Shortcomings of the current second-moment model are an overproportionally large damping of normal stresses due to inadequacies in the modeling of the pressure-strain terms and the predicted behavior in the reattachment region.",

author = "Shinnosuke Obi and Georg Scheuerer and Milovan Peri{\'c}",

note = "Funding Information: Financial support for this study was provided by Stiftung Volkswagenwerk. The authors are grateful to F. Durst for his constant interest in this work and to M. A. Leschziner and M. P. Arnal for valuable discussions.",

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AU - Obi, Shinnosuke

AU - Scheuerer, Georg

AU - Perić, Milovan

N1 - Funding Information: Financial support for this study was provided by Stiftung Volkswagenwerk. The authors are grateful to F. Durst for his constant interest in this work and to M. A. Leschziner and M. P. Arnal for valuable discussions.

PY - 1991/4

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N2 - The paper presents a finite-volume calculation procedure using second-moment turbulence closure. A special interpolation technique is employed in connection with a collocated variable arrangement to avoid oscillatory solutions that might otherwise result from inappropriate coupling of the mean velocity, pressure, and Reynolds stress fields. The apparent diffusion fluxes arising from the interpolation procedure ensure numerical stability of the iterative solution process. The application of the second-moment closure model to backward-facing step flows yields slightly improved results as compared with k-ε model predictions. Shortcomings of the current second-moment model are an overproportionally large damping of normal stresses due to inadequacies in the modeling of the pressure-strain terms and the predicted behavior in the reattachment region.

AB - The paper presents a finite-volume calculation procedure using second-moment turbulence closure. A special interpolation technique is employed in connection with a collocated variable arrangement to avoid oscillatory solutions that might otherwise result from inappropriate coupling of the mean velocity, pressure, and Reynolds stress fields. The apparent diffusion fluxes arising from the interpolation procedure ensure numerical stability of the iterative solution process. The application of the second-moment closure model to backward-facing step flows yields slightly improved results as compared with k-ε model predictions. Shortcomings of the current second-moment model are an overproportionally large damping of normal stresses due to inadequacies in the modeling of the pressure-strain terms and the predicted behavior in the reattachment region.

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Second-moment calculation procedure for turbulent flows with collocated variable arrangement

Abstract

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