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Current CFD simulation studies of large data centers cannot model the detailed geometries of the perforated tiles due to grid size limitation. These studies often assume that the tile flow can be modeled as constant velocity based on a fully open tile. In this case, mass flux is enforced at the expense of under-predicting momentum flux; the error in momentum flux can be as high as a factor of four...
This paper presents a method to evaluate air flow effectiveness of both traditional raised floor designs and non-raised floor air-conditioning designs for data centers. Metrics are developed that will easily permit owners, engineers and operators to measure and quantify the performance of their data center air distribution systems or changes that they make to their cooling systems to improve air management...
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