QQ客服 官方微博 反馈留言

	Development of a mesoscopic particle model for synthesis of uranium-ceramic nuclear fuel
	Wang, Xiaolin ; Zhang, Hui ; Zheng, Lili ; Wei, Jiuan
	2010-10-12 ; 2010-10-12 ; OCT
关键词	Mesoscopic Porous media Synthesis Smoothed particle hydrodynamics Nuclear fuel THROUGH POROUS-MEDIA MECHANICAL-PROPERTIES THERMAL-CONDUCTIVITY HYDRODYNAMICS METHOD NUMERICAL-MODEL SILICON-CARBIDE FLUIDIZED-BEDS HEAT-TRANSFER FLOW SIMULATIONS Thermodynamics Engineering, Mechanical Mechanics
中文摘要	A novel technique has been developed to fabricate uranium-ceramic nuclear fuel using the depleted uranium (DU), U3O8 powder. and allyl hydriclopolycarbosilane (AHPCS) polymer precursor. This process involves a continuous change of the composition, porosity, and material properties. To fabricate nuclear fuel with a uniform structure/volume ratio, it is important to understand the transport phenomena during high temperature processing and at different length scales. In our prior work, a system-level model based on the reactive porous medium theory was developed to account for pyrolysis process during the uranium-ceramic fuel fabrication. In this paper. a mesoscopic model based on the smoothed particle hydrodynamics (SPH) is developed to simulate the synthesis of Her U3O8 particles and SiC matrix. The system-level model provides the necessary thermal boundary conditions for the mesoscopic simulation. The evolution of the particle concentration and the structure as well as the composition of the composite produced is investigated. Since the process heat flux plays an important role in the material quality and uniformity, the effect of the heating rate, filler particle size and distribution on the uniformity and the structure of the final product are investigated. The uncertainty issue is also discussed. (C) 2009 Elsevier Ltd, All rights reserved.
语种	英语 ; 英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78833]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Xiaolin,Zhang, Hui,Zheng, Lili,et al. Development of a mesoscopic particle model for synthesis of uranium-ceramic nuclear fuel[J],2010, 2010, OCT.
APA	Wang, Xiaolin,Zhang, Hui,Zheng, Lili,&Wei, Jiuan.(2010).Development of a mesoscopic particle model for synthesis of uranium-ceramic nuclear fuel..
MLA	Wang, Xiaolin,et al."Development of a mesoscopic particle model for synthesis of uranium-ceramic nuclear fuel".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。