TMT studies on thermal seeing modeling: mirror seeing model validation

Konstantinos Vogiatzis; Robert Upton

doi:10.1117/12.670278

23 June 2006 TMT studies on thermal seeing modeling: mirror seeing model validation

Proceedings Volume 6271, Modeling, Systems Engineering, and Project Management for Astronomy II; 627115 (2006) https://doi.org/10.1117/12.670278
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Mirror and dome seeing are critical effects influencing the optical performance of large ground based telescopes. Computational Fluid Dynamics (CFD) and optical models that simulate mirror seeing in the Thirty Meter Telescope (TMT) are presented. The optical model used to quantify the effects of seeing utilizes the spatially varying refractive index resulting from the expected theoretical flow field, while the developed CFD post-processing model estimates the corresponding C_N² distribution. The seeing effects corresponding to a flat plate are calculated. Plots of seeing versus different temperature differences, velocities and plate lengths are generated. The discussion presented contains comparisons of the results from the two models with published empirical relations.

Citation Download Citation

Konstantinos Vogiatzis and Robert Upton "TMT studies on thermal seeing modeling: mirror seeing model validation", Proc. SPIE 6271, Modeling, Systems Engineering, and Project Management for Astronomy II, 627115 (23 June 2006); https://doi.org/10.1117/12.670278

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available