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Proceedings Paper

Initial design factors and airflow analysis for the LSST enclosure
Author(s): Douglas R. Neill; Jeffrey D. Barr; Victor L. Krabbendam; Kishor K. Khankari; Aashish S. Watave; Yaddanapudi Krishna
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Paper Abstract

Cylindrical (carousel) and spherical dome designs for the Large Synoptic Survey Telescope (LSST) were analyzed for air flow characteristics using computational fluid dynamic models. The primary objective was to determine the level of dome flushing achieved with natural ventilation and representative site wind conditions. The domes were 30 meters in diameter at the base, designed to enclose the LSST and provide adequate space for servicing requirements with the smallest possible major dimensions. The carousel style enclosure allowed moderately superior flushing with better uniformity which will produce superior local seeing conditions. Since the cylindrical style enclosure was also determined to be less costly, this concept was chosen as the baseline enclosure design for the LSST.

Paper Details

Date Published: 9 July 2008
PDF: 11 pages
Proc. SPIE 7017, Modeling, Systems Engineering, and Project Management for Astronomy III, 70170P (9 July 2008); doi: 10.1117/12.789711
Show Author Affiliations
Douglas R. Neill, NOAO/LSST (United States)
Jeffrey D. Barr, NOAO/LSST (United States)
Victor L. Krabbendam, NOAO/LSST (United States)
Kishor K. Khankari, ANSYS, Inc. (United States)
Aashish S. Watave, ANSYS, Inc. (United States)
Yaddanapudi Krishna, ANSYS, Inc. (United States)

Published in SPIE Proceedings Vol. 7017:
Modeling, Systems Engineering, and Project Management for Astronomy III
George Z. Angeli; Martin J. Cullum, Editor(s)

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