Significant questions in predicting room air motion
article
Based on a state-of-the-art review, some computational results, and experimental data, a few questions one usually encounters in numerical simulation of room air movement are discussed in this paper. The following conclusions can be drawn: the standard k-E model is still the most appropriate detailed model used in computing room airflows; the standard k-E model may correctly predict turbulent air motion in a room if the thermal and flow boundary conditions are provided properly; it is difficult to predict unstable airflow and airflows with multiple solutions; the wall function method is not suitable for predicting heat exchange coefficient near a wall; many complex diffusers could be numerically simulated by a number of approximated methods.
TNO Identifier
282247
Source
ASHRAE Transactions, 98(1), pp. 929-939.
Publisher
ASHRAE
Collation
12 p.
Pages
929-939
Files
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