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Proceedings Paper

A parallel integrated model of the Euro50
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Paper Abstract

The Euro50 is an astronomical extremely large telescope for optical and infrared wavelength with a 50 m primary mirror. The telescope will have an elaborate control system ("live optics") to correct for atmospheric and telescope aberrations. To study and predict performance of the complete telescope system, an integrated model combining the structural model of the telescope, optics models, the control systems, and the adaptive optics has been established. Wind is taken into account on the basis of wind tunnel measurements and computer fluid dynamics calculations. Atmospheric aberrations are included using a seven-layer atmosphere model. The integrated model is written in Matlab and is run on a cluster computer to achieve acceptable execution times. Dedicated ordinary differential equation solvers have been written and a special toolkit for communication between Matlab processes on different nodes of the cluster computer has been set up. Preliminary results from the complete integrated model, including adaptive optics, are shown.

Paper Details

Date Published: 16 September 2004
PDF: 15 pages
Proc. SPIE 5497, Modeling and Systems Engineering for Astronomy, (16 September 2004); doi: 10.1117/12.551872
Show Author Affiliations
Torben E. Andersen, Lund Observatory (Sweden)
Anita Enmark, Lund Observatory (Sweden)
Dan Moraru, Lund Observatory (Sweden)
Chengyu Fan, Lund Observatory (Sweden)
Mette Owner-Petersen, Lund Observatory (Sweden)
Holger Riewaldt, Lund Observatory (Sweden)
National Univ. of Ireland/Galway (Ireland)
Michael Browne, National Univ. of Ireland/Galway (Ireland)
Andrew Shearer, National Univ. of Ireland/Galway (Ireland)


Published in SPIE Proceedings Vol. 5497:
Modeling and Systems Engineering for Astronomy
Simon C. Craig; Martin J. Cullum, Editor(s)

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