Study on Flow Mixing inside Rod Bundle Based on Image Processing Algorithm

Wang Xiaoyu; Tan Sichao; Du Sijia; Zhang Yu; Wei Zonglan; LIu Yu; Deng Jian

doi:10.13832/j.jnpe.2017.S2.0038

Volume 38 Issue S2

Feb. 2025

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Wang Xiaoyu, Tan Sichao, Du Sijia, Zhang Yu, Wei Zonglan, LIu Yu, Deng Jian. Study on Flow Mixing inside Rod Bundle Based on Image Processing Algorithm[J]. Nuclear Power Engineering, 2017, 38(S2): 38-41. doi: 10.13832/j.jnpe.2017.S2.0038

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Wang Xiaoyu, Tan Sichao, Du Sijia, Zhang Yu, Wei Zonglan, LIu Yu, Deng Jian. Study on Flow Mixing inside Rod Bundle Based on Image Processing Algorithm[J]. Nuclear Power Engineering, 2017, 38(S2): 38-41. doi: 10.13832/j.jnpe.2017.S2.0038

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Study on Flow Mixing inside Rod Bundle Based on Image Processing Algorithm

doi: 10.13832/j.jnpe.2017.S2.0038

1. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China;
2. Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin, 150001, China

Received Date: 2017-10-10
Rev Recd Date: 2017-11-13

Abstract

Abstract

Flow characteristics of the coolant inside the nuclear fuel rod bundle is an important research topic for reactor thermal-hydraulic safety analysis. Visualization experiment results of the rod bundle with spacer grid were studied in this paper, and fluid mixing inside the rod bundle was analyzed qualitatively and quantitatively based on image processing algorithm, to provide the information for the reactor thermal-hydraulic safety analysis. Image processing algorithm was introduced at three levels, i.e., data verification, regularity summarizing and mechanism analysis, and the image processing algorithm was applied in analyzing of visualization experiment results of rod bundle. The analysis results indicate that the flow mixing mitigate 5 cm downstream the spacer grid, and Canny edge detector is applicable of spacer grid turbulence image.
- Rod bundle,
- Spacer grid,
- Flow mixing,
- Image processing algorithm