The use of ultrasonic instrumentation in sodium-cooled fast reactors requires to understand and to predict how ultrasonic waves can be deflected, slowed down or speeded up, depending on the thermo-hydraulic characteristics of the liquid sodium. These thermo-hydraulic characteristics are mainly the local temperature and flow speed of the sodium. In this study we show that ray theory can be used to simulate ultrasonic propagation in a medium similar to the core of a sodium-cooled fast reactor, in order to study ultrasonic instrumentation and prepare it installation and utilisation in the sodium of the nuclear reactor. A suitable model has been developed and a set of thermo-hydraulics data has been created, taking account of the particularities of the sodium flow. The results of these simulations are then analysed within the framework of acoustic thermometry, in order to determine which disturbance must be taken into account for the correct operation of the temperature measurement.
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28 May 2014
Research Article|
May 23 2014
Modelling of ultrasonic propagation in turbulent liquid sodium with temperature gradient
N. Massacret;
N. Massacret
1
CEA, DEN, Nuclear Technology Department
, F-13108 Saint-Paul-Lez-Durance, France
2
Aix-Marseille Université
, LMA UPR 7051 CNRS, site LCND, 13625 Aix-en-Provence, France
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J. Moysan;
J. Moysan
a)
2
Aix-Marseille Université
, LMA UPR 7051 CNRS, site LCND, 13625 Aix-en-Provence, France
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M. A. Ploix;
M. A. Ploix
2
Aix-Marseille Université
, LMA UPR 7051 CNRS, site LCND, 13625 Aix-en-Provence, France
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J. P. Jeannot;
J. P. Jeannot
1
CEA, DEN, Nuclear Technology Department
, F-13108 Saint-Paul-Lez-Durance, France
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G. Corneloup
G. Corneloup
2
Aix-Marseille Université
, LMA UPR 7051 CNRS, site LCND, 13625 Aix-en-Provence, France
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a)
Author to whom correspondence should be addressed. Electronic mail: joseph.moysan@univ-amu.fr
J. Appl. Phys. 115, 204905 (2014)
Article history
Received:
February 17 2014
Accepted:
April 29 2014
Citation
N. Massacret, J. Moysan, M. A. Ploix, J. P. Jeannot, G. Corneloup; Modelling of ultrasonic propagation in turbulent liquid sodium with temperature gradient. J. Appl. Phys. 28 May 2014; 115 (20): 204905. https://doi.org/10.1063/1.4875876
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