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- W2035878889 abstract "view Abstract Citations (6) References (4) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Numerical Simulations of Airflow in Telescope Enclosures De Young, David S. Abstract Contemporary design of large telescopes requires optimization of the telescope environment in order to fully realize the capabilities of advanced mirror technology, telescope control, and instrumentation. Telescope enclosure design is a critical element in providing this optimized environment. Enclosures must protect the telescope while minimizing the local degradation of image quality, and the large cost of such structures requires that a successful design be in place before construction begins. In order to test various enclosure designs, three-dimensional nonlinear hydrodynamic calculations have been carried out to determine the flow of air within and around proposed enclosure configurations. Such calculations can test the effectiveness of dome venting, evaluate the dynamic pressures that cause possible deformation of primary mirror surfaces and structural windshake, and isolate sources of turbulent flow that may cause image degradation. Results are presented from a series of calculations that investigated characteristic flows in the Gemini 8-meter enclosure and around its associated primary mirror cell. In general the enclosure design is found to meet its overall design goals. Good dome venting is achieved under a variety of conditions, yet the telescope structure is kept in a low wind environment. Publication: The Astronomical Journal Pub Date: December 1996 DOI: 10.1086/118229 Bibcode: 1996AJ....112.2896D Keywords: METHODS: NUMERICAL; TELESCOPE OPTICS full text sources ADS |" @default.
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- W2035878889 date "1996-12-01" @default.
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- W2035878889 title "Numerical Simulations of Airflow in Telescope Enclosures" @default.
- W2035878889 doi "https://doi.org/10.1086/118229" @default.
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