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ATSTProject data

• Title: Análisis numérico para determinar la localización del telescopio ATST

• Company: Instituto de Astrofísica de Canarias• Period: 01/05/2005 - 31/07/2005 • Collaborators: Joan Baiges, Daniel Pérez

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Objectives

• To model turbulent air flow around telescope enclosures

• To compute pressure spectra• To compute turbulent parameters (integral

length and integral time)• To propose a numerical model to compute

optical parameters of the site

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Key numerical ingredients

• Stabilized finite element method• LES turbulence model• Statistical CFD data treatment• Numerical integration procedures along

light beams

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Results I

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Results II

Pressures. East wind of 1 m/s.

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Results III

Velocity norm. East wind of 1 m/s.

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Results IV

Velocity vectors. East wind of Vent 1 m/s.

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Results V

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Results VI