TMT studies on thermal seeing modeling: mirror seeing model validation

Details TMT studies on thermal seeing modeling: mirror seeing model validation TMT studies on thermal seeing modeling: mirror seeing model validation

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6271e..40v&link_type=abstract

Modeling, Systems Engineering, and Project Management for Astronomy II. Edited by Cullum, Martin J.; Angeli, George Z.. Procee

Astronomy and Astrophysics

Astronomy

Scientific paper

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 CN2 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.

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