IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : Simulation of Radionuclide Diffusion of an Inland Nuclear Power Plant under Accident Condition Based...
Simulation of Radionuclide Diffusion of an Inland Nuclear Power Plant under Accident Condition Based on Fluent
Author : Yanchen Zhou, Tisong Hu, Nannan Zhang and Hongbin Fang
The current achievements about diffusion of radioactive liquid effluent has been introduced in this paper, and also the scope of application of three-dimensional, two-dimensional, one-dimensional and zero-dimensional numerical models. For an inland proposed nuclear power plant, two-dimensional model and FLUENT software were used to simulate the flow field of receiving water and radionuclide diffusion of radioactive liquid effluent in accident condition. k-e model was chosen to simulate the flow field of receiving water and the result showed that it could reflect basically the original flow field. 131 137 Component transport model was chosen to carry out the unsteady simulation of radionuclide I and Cs, 131 result showed that short half-life nuclide I had faster speed of concentration decreasing than long 137 half-life nuclide Cs, and they both have trend forward to diffuse upstream and the tributaries of the river downstream. The diffusion velocity is relatively fast where water flows quickly but in the places where water flows slowly or existing local eddy and backflow the diffusion velocity is much slower, and the nuclides will stay long term. The approach proposed in this paper is a quick and reliable way to predict radioactive nuclide movement after nuclear power plant accident.
File Size : 927,527 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 4 - HYDRO-ENVIRONMENT
Date Published : 18/07/2016
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