Aerodynamic modeling in dome seeing study of the 2.16-m telescope

doi:10.1117/1.JATIS.5.2.024011

CORC > 国家天文台 > 中国科学院国家天文台

	Aerodynamic modeling in dome seeing study of the 2.16-m telescope
	Li, Taoran 2; Tian, Jianfeng 2; Wang, Jianfeng 1,2; Jiang, Xiaojun 1,2; Hou, Zhigang 2; Li, Hongbin 2
刊名	JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS
	2019-04-01
卷号	5 期号:2 页码:7
关键词	2.16-m telescope dome computational fluid dynamics thermal modeling
ISSN号	2329-4124
DOI	10.1117/1.JATIS.5.2.024011
英文摘要	Aerodynamic analysis is a crucial part of evaluating dome seeing, which is one of the main factors affecting telescope image quality. Due to the large volume and high heat quantity inside the dome, dome seeing is a common issue. To characterize the thermodynamic performance of the 2.16-m telescope at the Xinglong Observatory, we describe computational fluid dynamic analyses for modeling the effects of passive ventilation as part of a preliminary study for a dome venting system. The aerodynamic modeling is built based on the structures of telescope and enclosure. In addition, the distribution of the temperature and the airflow around the enclosure are presented in several simulations with different slit orientations, including various wind-telescope relative azimuth angles. The airflow distribution was studied for two cases. The temperature and turbulent contour maps show that the current passive ventilation can cause turbulence and influence the accuracy of the image. The dome seeing is estimated using a postprocessing analysis based on the mechanical turbulence and temperature variations along the optical path. The results of dome seeing gave a suggestion of venting strategy. (C) The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License.
资助项目	National Natural Science Foundation of China (NSFC)[11703043] ; National Natural Science Foundation of China (NSFC)[U1831209]
WOS研究方向	Engineering ; Instruments & Instrumentation ; Optics
语种	英语
出版者	SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
WOS记录号	WOS:000481881700033
资助机构	National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/27369]
专题	中国科学院国家天文台
通讯作者	Li, Taoran
作者单位	1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Astrona, Natl Astron Observ, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Taoran,Tian, Jianfeng,Wang, Jianfeng,et al. Aerodynamic modeling in dome seeing study of the 2.16-m telescope[J]. JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS,2019,5(2):7.
APA	Li, Taoran,Tian, Jianfeng,Wang, Jianfeng,Jiang, Xiaojun,Hou, Zhigang,&Li, Hongbin.(2019).Aerodynamic modeling in dome seeing study of the 2.16-m telescope.JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS,5(2),7.
MLA	Li, Taoran,et al."Aerodynamic modeling in dome seeing study of the 2.16-m telescope".JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS 5.2(2019):7.