Wind-tunnel study of an observatory dome with a circular aperture | Zendy

Gregory Zilliac | Zendy; Ethan W. Cliffton | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Wind-tunnel study of an observatory dome with a circular aperture

Author(s) -

Gregory Zilliac,

Ethan W. Cliffton

Publication year - 1991

Publication title -

publications of the astronomical society of the pacific

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.294

H-Index - 172

eISSN - 1538-3873

pISSN - 0004-6280

DOI - 10.1086/132941

Subject(s) - dome (geology) , wind tunnel , observatory , aperture (computer memory) , shutter , telescope , geology , wind speed , vibration , physics , wind direction , optics , structural engineering , acoustics , meteorology , engineering , mechanics , astrophysics , geomorphology

Results are presented from wind tunnel tests of the novel, 'fixed shutter' observatory dome concept, which is intended to minimize wind shake effects. In order to enclose larger telescopic apertures, this design allows an upper spherical segment to rotate under a shell of slightly larger diameter which is fixed to a lower rotatable segment. A side-by-side wind tunnel test comparison of this and a conventional dome shows that the mean and fluctuating velocity through the aperture and in the center of the new dome are lower than those of conventional domes, thereby lowering the likelihood of flow-induced telescope vibration.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research