Large-eddy simulation of three-dimensional bundle flows

Conference · Fri Jan 01 04:00:00 EST 1993 · Transactions of the American Nuclear Society; (United States)

OSTI ID:5800859

Hassan, Y A; Lee, S ^[1]

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1. Texas A M Univ., College Station (United States)

The objective of this study is to apply the large-eddy simulation (LES) technique to practical three-dimensional turbulent flows. The LES technique is emerging as one of the most promising techniques for the calculation of turbulence within industrial flow components such as steam generators and heat exchangers. In this investigation, the unsteady two- and three-dimensional flow field within a tube bundle has been calculated and compared with available experimental findings. The results of an LES calculation are time histories of the fluctuating velocity components and pressure at each mesh location. The power spectral densities (PSDS) of the time-dependent lift and drag coefficients are compared with similar data obtained experimentally. The results show that the LES calculations are in reasonable agreement with the available experimental data for both two- and three-dimensional calculations. This study also shows that the two-dimensional model provides a satisfactory simulation of the three-dimensional turbulent phenomenon occurring within the tube bundle for the cases considered.

• OSTI ID: 5800859
• Report Number(s): CONF-930601--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 68
• Country of Publication: United States
• Language: English

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