Applications of ultrasound technique to flow velocity measurement in water experiment of inter-wrapper flow; Comparison with particle image velocimetry

Kimura, Nobuyuki; ; ; ; Kamide, Hideki; Tokuhiro, Akira; Hishida, Koichi

JNC TN9400 2000-057, 60 Pages, 2000/05

JNC-TN9400-2000-057.pdf:2.11MB

ln experimental study for the thermohydraulics of fast reactor, a simple experiment with fine measurement has been desired for understanding of phenomena and for verification of computer code rather than mockup experiments of large scale. For such purposes quality of experimental data must be improved. ln the velocity measurement, instantaneous velocity profile will have great advances for the understanding of phenomena and for the verification of computer code. ln this report two methods of the velocity profile measurement are discussed; one is ultrasound Doppler velocimetry (UDV) and the other is particle image velocimetry (PIV). These methods were applied to water experiments. The UDV was applied to pipe flow, planer jet, and the inter-wrapper flow which is seen in the gap region between subassemblies of fast reactor core. Cross check with laser Doppler velocimetly showed proper measurement of the UDV. Problems including the application to sodium experiments are also discussed. The PIV was also applied to the inter-wrapper flow. For the application to complex flow geometry, noise reduction method was developed to improve the measurement accuracy.

Central Instutute of Isotope and Radiation Research, Academy of Sciences of the German Democratic Republic

Tominaga, Hiroshi

Isotope News, 8, p.24 - 27, 1989/08

no abstracts in English

For expansive industrial uses of radioisotope application gaugings,6; Challenges to new application technigues

Tominaga, Hiroshi

Radioisotopes, 36(8), p.428 - 431, 1987/08

https://doi.org/10.3769/radioisotopes.36.8_428

no abstracts in English

Current trends of sealed radiation sources and isotope gauges, 4; Possibilities of new applications

; *

Radioisotopes, 31(5), p.261 - 267, 1982/00

https://doi.org/10.3769/radioisotopes.31.5_261

no abstracts in English

A view of new applications of radioisotopes in industry and development organizations; With emphasis on gauging instruments

Genshiryoku Kogyo, 26(1), p.51 - 54, 1980/00

http://ci.nii.ac.jp/naid/40001072191

no abstracts in English

Radiation measurement applications with small sealed sources

Hoshasen To Sangyo, (14), p.10 - 15, 1979/00

no abstracts in English