In recent years, the morphological characteristics and stabilization methods of free interface in liquid windowless target become hot research topics in accelerator driven subcritical system (ADS). Based on the structure design of a certain windowless spallation target, computational fluid dynamics (CFD) software of CFX was used to simulate and analyze its free interface character. The method of kε turbulence, cavitation, and volume of fluid (VOF) model was used to study the flow characteristic of liquid Lead-Bismuth eutectic (LBE) alloy with cavitation phase change and to analyze the free interface morphology characteristics of coolant in the target area. It is concluded that the target region forms two stable free interfaces when fluid outlet pressure is in the range of 10–40 kPa and fluid entrance velocity is in the range of 0.5–1.2 m/s. The flow field near the free interface structure is complex. The vortex region appears, and the disorders in the vortex flow pattern lead to fluctuation of the free interface. After the study of stable free interface morphology establishing process, heat transfer characteristic of windowless target was further analyzed.

References

References
1.
Abderrahim
,
H. A.
,
Kupschus
,
P.
,
Malambu
,
E.
,
Benoit
,
P.
,
Tichelen
,
K. V.
,
Arien
,
B.
,
Vermeersch
,
F.
,
D'hondt
,
P.
,
Jongen
,
Y.
,
Ternier
,
S.
, and
Vandeplassche
,
D.
,
2001
, “
MYRRHA: A Multipurpose Accelerator Driven System for Research and Development
,”
Nucl. Instrum. Methods Phys. Res., Sect. A
,
463
(
3
), pp.
487
494
.
2.
Bowman
,
C. D.
,
1998
, “
Accelerator-Driven Systems for Nuclear Waste Transmutation
,”
Annu. Rev. Nucl. Part. Sci.
,
48
(
1
), pp.
505
556
.
3.
Zhan
,
W. L.
, and
Xu
,
H. S.
,
2012
, “
Advanced Fission Energy Program-ADS Transmutation System
,”
Bull. Chin. Acad. Sci.
,
27
(3), pp.
375
381
.
4.
Class
,
A. G.
,
Angeli
,
D.
,
Batta
,
A.
,
Dierckx
,
M.
, and
Fellmoser
,
F.
,
2011
, “
XT-ADS Windowless Spallation Target Thermohydraulic Design and Experimental Setup
,”
J. Nucl. Mater.
,
415
(
3
), pp.
378
384
.
5.
Jeanmart
,
H.
,
Bricteux
,
L.
,
Tichelen
,
K.
, and
Dierckx
,
M.
,
2011
, “
Characterisation in Water Experiments of a ‘Detached Flow’ Free Surface Spallation Target
,”
J. Nucl. Mater.
,
415
(
3
), pp.
385
395
.
6.
Liu
,
J.
,
Gao
,
L.
, and
Lu
,
W. Q.
,
2014
, “
The Effect of Beam Intensity on Temperature Distribution in ADS Windowless Lead-Bismuth Eutectic Spallation Target
,”
Sci. Technol. Nucl. Install.
,
2014
(
9
), p. 984971.
7.
Sobolev
,
V.
,
2007
, “
Thermophysical Properties of Lead and Lead–Bismuth Eutectic
,”
J. Nucl. Mater.
,
362
(
2–3
), pp.
235
247
.
8.
Jie
,
L.
,
Liu
,
B. Q.
,
Zhang
,
X. Z.
, and
Yang
,
L.
,
2013
, “
Flow and Phase Change Process of LBE Liquid and Vapor in the ADS Windowless Spallation Target
,”
J. Eng. Thermophys.
,
34
(
9
), pp.
1683
1686
(in Chinese).
9.
Aniseh
,
A.
,
Jiyang
,
Y.
, and
Yongwei
,
Y.
,
2013
, “
Thermal-Hydraulic Analysis of PDS-XADS Spallation Target
,”
At. Energy Sci. Technol.
,
47
(
2
), pp.
260
265
(in Chinese).
10.
Su
,
G. Y.
,
Gu
,
H. Y.
, and
Cheng
,
X.
,
2012
, “
Experimental and Numerical Studies on Free Surface Flow of Windowless Target
,”
Ann. Nucl. Energy
,
43
, pp.
142
149
.
11.
Su
,
G. Y.
,
Chai
,
X.
,
Gu
,
H. Y.
, and
Cheng
,
X.
,
2011
, “
Studies on Unsteady Characteristics of Free Surface Flow in ADS Windowless Target
,”
J. Eng. Thermophys.
,
32
(
9
), pp.
1509
1512
(in Chinese).
You do not currently have access to this content.