A thermal fragmentation model induced by surface solidification

被引：19

作者：

Cao, XW ^{[1
]}

Tobita, Y ^{[1
]}

Kondo, S ^{[1
]}

机构：

[1] Japan Nucl Cycle Dev Inst, Oarai Engn Ctr, Oarai, Ibaraki 3111393, Japan

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2002年 / 39卷 / 06期

关键词：

thermal fragmentation; hydrodynamic fragmentation; surface solidification; stiffness; surface tension; stresses; FCI; numerical simulation; multi phases; multi-components; fragmentation rate;

D O I：

10.3327/jnst.39.628

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A fragmentation phenomenon of a melt droplet induced by surface solidification has been studied for many years, but the fragmentation rate model, based on such a thermal mechanism, is not available for numerical simulation tools. In this study, in order to develop a fragmentation rate correlation of a melt droplet, induced by surface solidification, a thermal fragmentation mechanism is proposed, based on the Taylor instability. The theoretical fragmentation model is developed and a simplified non-dimensional correlation is proposed for convenient application to simulation tools. The developed fragmentation rate correlation is verified by simulating the MIXA experiment.

引用

页码：628 / 636

页数：9

共 23 条

[1]

BERTHOUD G, 1997, P OECD CSNI SPEC M F, P510

[2] METAL/WATER EXPLOSIONS [J].

BRAUER, FE ;

GREEN, NW ;

MESLER, RB .

NUCLEAR SCIENCE AND ENGINEERING, 1968, 31 (03) :551-&

[3]

CAO X, 2000, 2000 ANN M AT EN SOC

[4]

CORRADINI ML, 1997, P OECD CSNI SPEC M F, P733

[5]

CRONENBERG AW, 1975, NUCL SAFETY, V16, P683

[6] THERMAL-STRESS MECHANISM FOR FRAGMENTATION OF MOLTEN UO2 UPON CONTACT WITH SODIUM COOLANT [J].

CRONENBERG, AW ;

CHAWLA, TC ;

FAUSKE, HK .

NUCLEAR ENGINEERING AND DESIGN, 1974, 30 (03) :434-443

[7]

DENHAM MK, 1992, P 5 INT TOP M REACT, P1667

[8]

EPSTEIN M, 1977, T ASME, V99, P527

[9] THE CHYMES COARSE MIXING MODEL [J].

FLETCHER, DF ;

THYAGARAJA, A .

PROGRESS IN NUCLEAR ENERGY, 1991, 26 (01) :31-61

[10] FCI EXPERIMENTS IN THE ALUMINUM OXIDE/WATER SYSTEM [J].

HOHMANN, H ;

MAGALLON, D ;

SCHINS, H ;

YERKESS, A .

NUCLEAR ENGINEERING AND DESIGN, 1995, 155 (1-2) :391-403

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