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ELT

Project data

• Title: ELT-DS Technology development programme towards a European Extremely Large Telescope

• Project type: European Commission, FP6 • Reference: Proposal No 011863, FP6-2003-Infrast-4 • Period: 01/01/2005 - 30/11/2008 • Collaborators: Daniel Pérez, Christian Muñoz

11 Foundation Building Completion

11.1 Concrete columns erection11.2 Roof steel structure installation11.3 Façade and roof cladding installation11.4 Interior floor and wall finishing11.5 Doors and windows installationFigure

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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)

These ingredients are essential to quantify the optical quality of a site

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Key numerical ingredients

• Stabilized finite element method• LES turbulence model• Statistical CFD data treatment

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Results I

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Results II

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Results III