Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter February 14, 2022

One-dimensional and three-dimensional coupling simulation research of centrifugal cascade hydraulics

Yan Hao, Che Jun and Chen Siyu
From the journal Kerntechnik


Centrifuge cascade hydraulics research is very important for the cascade system design and safety analysis. The one-dimensional centrifugal cascade dynamic hydraulics calculation program can be used to achieve the rapid verification of the cascade system dynamic operation or accident condition. While the computational fluid dynamics (CFD) program is mainly used to analyze the local three-dimensional fluid phenomena such as the centrifugal cascade pipe and equipment. To comprehensively utilize the advantages of the two simulation methods, based on the one-dimensional calculation software SimuWorks of centrifugal cascade hydraulics and three-dimensional flow field calculation software Fluent, a one-dimensional and three-dimensional coupling simulation program for centrifugal cascade hydraulics was developed by using the API functions provided by SimuWorks simulation software and the user-defined function (UDF) of Fluent. The coupling method is used to analyze the movement of solid particles in the main feed pipe of the separation stage. By comparing the calculation results of the coupling program with the calculation results of the traditional one-dimensional dynamic hydraulics program, it can be seen that the coupling program can correctly predict the influence of feeding orifice plate clogging on the system parameters and can more intuitively show the flow field characteristics in the important parts of the system. The motion characteristics of the solid particles obtained in the simulation verification are consistent with the experimental analysis results, which further verifies the accuracy of the coupling program. The coupling program can provide a new calculation method and analytical tool for the study of centrifugal cascade hydraulics.

Corresponding author: Yan Hao, CNNC No. 7 Research & Design Institute, Taiyuan 030012, China, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.


Anderson, N., Hassan, Y., and Schultz, R. (2007). Analysis of the hot gas flow in the outlet plenum of the very high temperature reactor using coupled RELAP5-3D system code and a CFD code. Nucl. Eng. Des. 238: 274–279, in Google Scholar

Aumiller, D.L., Tomlinson, E.T., and Bauer, R.C. (2001). A coupled RELAP5-3D/CFD methodology with a proof-of-principle calculation. Nucl. Eng. Des. 205: 83–90, in Google Scholar

He, F., Cai, M.Z., Guo, W., He, L., Cui, L., and Zhao, H. (2021). Development of coupled program based on RELAP5/FLUENT. Atomic Energy Sci. Technol. 55: 693–703, in Google Scholar

Li, W., Wu, X.L., Zhang, D.L., Su, G.H., Tian, W.X., and Qiu, S.Z. (2014). Preliminary study of coupling CFD code FLUENT and system code RELAP5. Ann. Nucl. Energy 73: 96–107, in Google Scholar

Li, T., Liang, C., Liu, Y., and Lin, H.F. (2020). Multidimensional thermal coupling design of high pressure turbine blades for naval gas turbines. J. Eng. Therm. Energy Power 35: 51–58, in Google Scholar

Shi, C. (2018). Three-dimensional coupled simulation study on the heat transfer in a 1000 MW ultra-supercritical boiler, Master degree. Tsinghua University.Search in Google Scholar

Tang, Y.H., Xi, G., Jin, Z.H., and Wang, Z.H. (2019). Research on one-dimensional/three-dimensional coupled modeling for seal and cavity flow of centrifugal compressor. J. Aero. Power 34: 2038–2047, in Google Scholar

Wang, P., Geng, J., and Zhang, H. (2020). Application and effect of centrifugal cascade powder filter device. Sci. Technol. Vis. 11: 81–83, in Google Scholar

Yan, H. and Li, W.J. (2019). Research and application of dynamic simulation model for centrifuge cascade hydraulics. Atomic Energy Sci. Technol. 53: 471–479, in Google Scholar

Yin, X.Q., Qiu, H.L., Wang, J.X., Gao, Y.N., and Ge, X.K. (2020). One-dimensional and three-dimensional coupling simulation of thermal management of a silent unit. Intern. Combust. Eng. Powerplant 37: 48–52+64, in Google Scholar

Zhang, W. (2012). Numerical simulation on two-phase flow in the turbine with dehumidification slots, Master degree. Harbin Institute of Technology.Search in Google Scholar

Zhang, Y.X., Gao, P.Z., He, X.Q., Chen, C., Lin, Y.Q., and Liu, Y.W. (2020). Coupled method of STAR-CCM+ and one-dimensional user code. J. Harbin Eng. Univ. 41: 1669–1674, in Google Scholar

Received: 2021-05-11
Published Online: 2022-02-14
Published in Print: 2022-04-26

© 2022 Walter de Gruyter GmbH, Berlin/Boston