The Brief discuss primarily two aspects of air flow management in raised floor data centers. Firstly, cooling air delivery
through perforated tiles will be examined and influence of the tile geometry on flow field development and hot air entrainment
above perforated tiles will be discussed. Secondly, the use of cold aisle containment to physically separate hot and cold
regions, and minimize hot and cold air mixing will be presented. Both experimental investigations and computational efforts
are discussed and development of computational fluid dynamics (CFD) based models for simulating air flow in data centers is
included. In addition, metrology tools for facility scale air velocity and temperature measurement, and air flow rate measurement
through perforated floor tiles and server racks are examined and the authors present thermodynamics-based models to gauge
the effectiveness and importance of air flow management schemes in data centers.