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Torben Anderssen. Profile picture.

Torben Andersen

Professor emeritus

Torben Anderssen. Profile picture.

A parallel integrated model of the Euro50

Author

  • Torben Andersen
  • Anita Enmark
  • Dan Moraru
  • Chengyu Fan
  • Mette Owner-Petersen
  • Holger Riewaldt
  • M Browne
  • A Shearer

Summary, in English

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

Department/s

  • Lund Observatory

Publishing year

2004

Language

English

Pages

251-265

Publication/Series

Proceedings of the SPIE - The International Society for Optical Engineering

Volume

5497

Issue

1

Document type

Conference paper

Publisher

SPIE

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • elaborate control system
  • live optics
  • atmospheric aberrations
  • telescope aberrations
  • structural model
  • optics models
  • adaptive optics
  • wind tunnel measurements
  • ordinary differential equation solvers
  • computer cluster
  • seven-layer atmosphere model
  • computer fluid dynamics calculations
  • Matlab process
  • segmented primary mirror
  • 50 m
  • infrared wavelength
  • optical wavelength
  • astronomical extremely large telescope
  • parallel integrated model
  • Euro50

Conference name

Modeling and Systems Engineering for Astronomy

Conference date

2004-06-24 - 2004-06-25

Conference place

Glasgow, United Kingdom

Status

Published

ISBN/ISSN/Other

  • ISSN: 1996-756X
  • ISSN: 0277-786X