The Calculation of the Profile-Linear Average Velocity in the Transition Region for Ultrasonic Heat Meter Based on the Method of Les

Liu, Yonghui; Du, Guang-sheng; Tao, Li-li; Shen, Fang

doi:10.1016/s1001-6058(10)60092-3

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…The presence of such a turbulent field has an impact on the propagation of ultrasonic waves. This phenomenon is used in acoustic flowmeters to measure the flow speed [16,17]. In the case of acoustic thermometry this could lead to errors in the estimation of temperature if that effect is not properly taken into account.…”

Section: Thermometry At the Outlet Of Nuclear Fuel Assembliesmentioning

confidence: 99%

Ultrasonic thermometry simulation in a random fluctuating medium: Evidence of the acoustic signature of a one-percent temperature difference

et al. 2016

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We study the development potential of ultrasonic thermometry in a liquid fluctuating sodium environment similar to that present in a Sodium-cooled Fast Reactor, and thus investigate if and how ultrasonic thermometry could be used to monitor the sodium flow at the outlet of the reactor core. In particular we study if small temperature variations in the sodium flow of e.g. about 1% of the sodium temperature, i.e., about 5°C, can have a reliably-measurable acoustic signature. Since to our knowledge no experimental setups are available for such a study, and considering the practical difficulties of experimentation in sodium, we resort to a numerical technique for full wave propagation called the spectral-element method, which is a highly accurate finite-element method owing to the high-degree basis functions it uses. We obtain clear time-of-flight variations in the case of a small temperature difference of one percent in the case of a static temperature gradient as well as in the presence of a random fluctuation of the temperature field in the turbulent flow. The numerical simulations underline the potential of ultrasonic thermometry in such a context.

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Section: Thermometry At the Outlet Of Nuclear Fuel Assembliesmentioning

confidence: 99%

Ultrasonic thermometry simulation in a random fluctuating medium: Evidence of the acoustic signature of a one-percent temperature difference

et al. 2016

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“…This turbulent field may also have consequences on the propagation of the ultrasonic waves. This phenomena is used in acoustic debitmeter to measure the speed flow [13][14] . In the case of acoustic thermometry, it could lead to errors in the measurement of the temperature.…”

Section: Introductionmentioning

confidence: 99%

Modelling of ultrasonic propagation in turbulent liquid sodium with temperature gradient

Massacret

Moysan

Ploix

et al. 2014

Journal of Applied Physics

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WOS:000337143500105International audienceThe 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. (C) 2014 AIP Publishing LLC

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Investigation on the uncertainty analysis of heat meters with a novel method of integral calibration

Zhan

Wang

Shao

et al. 2023

J Therm Anal Calorim

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The Calculation of the Profile-Linear Average Velocity in the Transition Region for Ultrasonic Heat Meter Based on the Method of Les

Cited by 9 publications

References 14 publications

Ultrasonic thermometry simulation in a random fluctuating medium: Evidence of the acoustic signature of a one-percent temperature difference

Ultrasonic thermometry simulation in a random fluctuating medium: Evidence of the acoustic signature of a one-percent temperature difference

Modelling of ultrasonic propagation in turbulent liquid sodium with temperature gradient

Investigation on the uncertainty analysis of heat meters with a novel method of integral calibration

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