Numerical simulation of airflow in a 2m telescope

Fu Zhao; Ping Wang; Yanjue Gong; Li Zhang; Chunling Meng; Jianlong Lin

doi:10.1117/12.831445

5 May 2009 Numerical simulation of airflow in a 2m telescope

Fu Zhao, Ping Wang, Yanjue Gong, Li Zhang, Chunling Meng, Jianlong Lin

Proceedings Volume 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 72810K (2009) https://doi.org/10.1117/12.831445
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

Recent advancements in computational fluid dynamics (CFD) software now make it possible to perform a full three-dimensional turbulent air flow analysis without the need for a supercomputer. The presented study investigates the airflow effects over 2-meter TSU telescope using CFD method. The effects of air velocity, air pressure about statics and dynamics and K energy have been calculated by using multi-physical coupling theory and CFD methods. It is shown that 90° angle between main optics axis and horizontal line is the best observation direction in which the air velocity distribution, airflow pressure deformation and K energy are the least to other directions.

Citation Download Citation

Fu Zhao, Ping Wang, Yanjue Gong, Li Zhang, Chunling Meng, and Jianlong Lin "Numerical simulation of airflow in a 2m telescope", Proc. SPIE 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 72810K (5 May 2009); https://doi.org/10.1117/12.831445

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