Impact of Decay on the Transport of Radioactive Aerosols in Long Square Tubes

Liu Man; Xia Mingming; Chen Zhi

doi:10.13832/j.jnpe.2024.04.0205

Volume 45 Issue 4

Aug. 2024

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Liu Man, Xia Mingming, Chen Zhi. Impact of Decay on the Transport of Radioactive Aerosols in Long Square Tubes[J]. Nuclear Power Engineering, 2024, 45(4): 205-212. doi: 10.13832/j.jnpe.2024.04.0205

Citation:

Liu Man, Xia Mingming, Chen Zhi. Impact of Decay on the Transport of Radioactive Aerosols in Long Square Tubes[J]. Nuclear Power Engineering, 2024, 45(4): 205-212. doi: 10.13832/j.jnpe.2024.04.0205

Liu Man, Xia Mingming, Chen Zhi. Impact of Decay on the Transport of Radioactive Aerosols in Long Square Tubes[J]. Nuclear Power Engineering, 2024, 45(4): 205-212. doi: 10.13832/j.jnpe.2024.04.0205

Citation:

Liu Man, Xia Mingming, Chen Zhi. Impact of Decay on the Transport of Radioactive Aerosols in Long Square Tubes[J]. Nuclear Power Engineering, 2024, 45(4): 205-212. doi: 10.13832/j.jnpe.2024.04.0205

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Impact of Decay on the Transport of Radioactive Aerosols in Long Square Tubes

doi: 10.13832/j.jnpe.2024.04.0205

Liu Man^1
,,
Xia Mingming²,
Chen Zhi^{1
,
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1.
School of Nuclear Science and Technology, University of Science & Technology of China, Hefei, 230027, China
2.
Nuclear Power Institute of China, Chengdu ,610213, China

Received Date: 2023-08-21
Rev Recd Date: 2023-12-19
Publish Date: 2024-08-12

Abstract

Abstract

Decay radiation can cause accumulation of surface charges of radioactive aerosol particles, and then affect their migration process. However, the charge effect of decay is not considered in the current radionuclide transport simulation. In this study, a particle decay charging model was established based on Python, and a coupled scheme of particle decay charging and flow field was proposed and implemented in Fluent. The results of decay charge model of particles containing ¹⁰⁶Ru, ¹³¹I, ¹³²Te and ¹³⁷Cs are analyzed respectively, and the results show that the particle charge will reach the equilibrium value in a short time. The flow of particles containing ¹³²Te in a long square tube is simulated in Fluent. The results show that the electric field force mainly exists near the tube wall, pointing to the direction of particle concentration decline, which indicates that decay charge will promote the diffusion of aerosol and fill the whole space more quickly. This study provides a reference for the coupling scheme and simulation results of decay, electric field, and flow field in subsequent simulations of radioactive nuclide transport.
- Decay,
- Euler-Lagrange method,
- Radionuclide,
- Aerosols,
- Electrostatic force

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References(28)

References

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