Comparison of different subgrid-scale models of large eddy simulation for indoor airflow modeling

Mingde Su, Qingyan Chen, Che Ming Chiang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

The Smagorinsky subgrid-scale model, a dynamic subgrid-scale model, and a stimulated subgrid-scale model have been used in a large eddy simulation (LES) program to compute airflow in a room. A fast Fourier transformation (FFT) method and a conventional iteration method were used in solving the Poisson equation. The predicted distributions of indoor air velocity, temperature, and contaminant concentrations show that the three subgrid-scale models can produce acceptable results for indoor environment design. The dynamic and stimulated models performed slightly better than the Smagorinsky model. The use of FFT can significantly reduce the computing time. LES is a tool of the next generation of indoor air distribution design.

Original languageEnglish
Pages (from-to)628-639
Number of pages12
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume123
Issue number3
DOIs
Publication statusPublished - Sep 2001

ASJC Scopus subject areas

  • Mechanical Engineering

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