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Prediction of room air motion by Reynolds-stress models

Chen, Q.
1999
Building and Environment, 31(3): 233-244

Chen, Q., (1999), "Prediction of room air motion by Reynolds-stress models", Building and Environment, 31(3): 233-244.
Abstract:
The test results are presented from three Reynolds-stress models (two isotropization of production models and a quasi-isotropic model) and the standard k ¡ª small epsilon, Greek model for predicting typical airflow in a room. The flow patterns studied are natural convection, forced convection and mixed convection in a room and an impinging jet flow. Experimental data from the literature is used for validation. The results show that the computations and the experimental data are in agreement for the mean air velocities, but less satisfactory for the turbulent quantities. The performance of the three Reynolds-stress models is similar, they all predict anisotropic turbulence and secondary recirculation existing in a room airflow for which the k ¡ª small epsilon, Greek model fails. However, the Reynolds-stress models require additional computing effort compared to the k ¡ª small epsilon, Greek model.

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Author Information and Other Publications Notes
Chen, Q.
School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907-2088, USA http://widget.ecn.purdue.edu/~yanchen/
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