Abstract
Due to T-tube tee is used mostly to connect ducts of the central air conditioning system, different angles of branch pipes caused different local resistance changes. This paper studied two-dimensional turbulent numerical simulation about inter flow of two kinds T-tube by numerical calculation software (CFD),in the method of implicit separation and standard k- ε two equations model, it is clear known that two kinds of forms tee fitting Angle of the internal flow field, Through the contrastive analysis of flow characteristics, it is obvious that local resistance of the oblique angled T-tube tee is much smaller than the common T-tube tee, and also is much more homogeneous.
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