A New Way of Using FLOVENT for Effective Data Center Analysis

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CFD modeling allows visualization of temperatures throughout the data center. Still, to sort out the cooling effectiveness of different design options can be challenging. By using the same CFD technology, the rack intake temperatures can be established. These temperatures provide a picture of the thermal environment but there is no yardstick for interpreting the conditions. The Rack Cooling Index (RCI) has the capacity to change this state of affairs. The RCI is a measure of how effectively equipment is cooled and maintained within industry thermal guidelines. This presentation demonstrates how Flovent modeling and the RCI can enhance the data center design work (consultants) or serve as a design specification (owners/operators).

Magnus K. Herrlin, Ph.D., CEM President ANCIS Incorporated

Guidelines for accurate cleanroom CFD modeling

Computational fluid dynamics (CFD) has proven its value and its validity in simulating cleanrooms. However, the user?s engineering judgment is still crucial to a successful CFD modeling job. When applying CFD software, caution must be taken to include all the relevant physics in the model. For example, in a cleanroom application, diffusers and major flow obstacles must be represented. In addition, heat sources such as heat generated by human occupants and equipment must also be included to produce an accurate solution. To ensure accurate results, general guidelines for simulating cleanroom design, some of which are listed in this article, should be followed.

Byron Blackmore, thermal & applications engineer - Weiran Xu, thermal engineer & support supervisor, Flomerics

Experimental-Numerical Comparison for a High-Density Data Center

The current trend of using denser server environments is continuously increasing to satisfy the growing needs of e-commerce and other emerging technologies. The resulting high room-level heat fluxes present significant challenges with respect to maintaining acceptable computer rack inlet temperatures and minimizing total data center energy consumption. Numerical methods are widely used to model existing and new facilities. Validation of existing numerical techniques is an important step in facilitating good thermal design of data centers. This paper uses previously published experimental data to present a comparison between test results and numerical simulations.

Saurabh K. Shrivastava & James W. VanGilder, American Power Conversion Corporation
Madhusudan Iyengar & Roger Schmidt, IBM Systems & Technology Group
Bahgat G. Sammakia, SUNY Binghamton

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