IMECH-IR  > 高温气体动力学国家重点实验室
DSMC simulation of gas heat transfer between coaxial cylinders
Song H(宋航); Yang C(杨超); Sun QH(孙泉华)
Source PublicationAIP Conference Proceedings
2019
Conference Name31st International Symposium on Rarefied Gas Dynamics, RGD 2018
Conference Date23 July 2018 ~ 27 July 2018
Conference PlaceUniversity of StrathclydeGlasgow; United Kingdom;
AbstractHow to reduce the heat loss caused by heat conduction of gas between coaxial cylinders is of vital importance. The problem is widely presented in the oil transportation pipeline and the solar parabolic trough receiver, where hydrogen percolation is inevitable. One of the most common methods is to fill with inert gas, such as argon and xenon. In this work, several factors affecting the heat loss in the coaxial cylinders are studied using the DSMC method, including the wall thermal accommodation coefficient, wall temperature, gas composition, and number density of the gas mixture. After determining argon as the filling gas, the effect of different combinations of the argon and hydrogen densities on the heat flux was studied, and an empirical formula was proposed to evaluate the heat flux of the Ar-H2 mixture. © 2019 Author(s).
ISBN9780735418745
URL查看原文
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85090
Collection高温气体动力学国家重点实验室
Affiliation1.State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, CAS, Beijing, 100190, China
2.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China
Recommended Citation
GB/T 7714
Song H,Yang C,Sun QH. DSMC simulation of gas heat transfer between coaxial cylinders[C]AIP Conference Proceedings,2019.
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