New Method of Coupling Multizone and CFD for Building Simulation
نویسندگان
چکیده
منابع مشابه
Theoretical and numerical studies of coupling multizone and CFD models for building air distribution simulations.
UNLABELLED Multizone network models employ several assumptions, such as uniform temperature and pressure and quiescent air inside a zone, which may lead to inaccurate results in flow calculations. These assumptions can be eliminated in the zones, where the assumptions are inappropriate, by coupling a multizone network program with a computational fluid dynamics (CFD) program. Through theoretica...
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In this paper we emphasize a technique based on graph theory that allows for deriving both a dimensionally reduced object model required for setting up a thermal multizone model and a geometrical model for defining a single or multiple CFD domains in a building model together with incidence matrices correlating these models. The incidence matrices are an essential precondition for establishing ...
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Current multizone airflow network models assume air momentum effects, contaminant concentrations and air temperatures are uniformly and homogeneously distributed in a zone of a building. These assumptions can cause errors for zones where air and/or contaminant are not well mixed. A coupled multizone-CFD program has been developed to improve the multizone model by applying a CFD model to those p...
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Previous studies indicated that the coupling of multizone and CFD (Computational Fluid Dynamics) models can provide a good compromise between the accuracy and required computation time. The results show that the coupled model predicts contaminant distribution more accurately than multizone model alone for the zones close to the contaminant source location. For all other zones, the multizone mod...
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ژورنال
عنوان ژورنال: Journal of Asian Architecture and Building Engineering
سال: 2008
ISSN: 1346-7581,1347-2852
DOI: 10.3130/jaabe.7.125