Development and validation of a one-dimensional transient rotodynamic pump model at component scale

29th IAHR Symposium on Hydraulic Machinery and Systems

Matteo, Laura^1 ; Dazin, Antoine^2 ; Tauveron, Nicolas^3

CEA Université Paris-Saclay, DEN/DM2S/STMF, France^1

LMFL FRE CNRS 2017, Arts et Métiers Paristech, Lille, France^2

CEA Grenoble, DRT/LITEN/DTBH/SSETI, France^3

关键词: Alternative energy;    Atomic energy commissions;    Rotodynamic pumps;    Safety evaluations;    Steady performance;    Thermal hydraulics;    Validation results;    Verification results;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/240/3/032003/pdf
DOI  :  10.1088/1755-1315/240/3/032003

来源: IOP

【 摘 要 】

For reactor design and safety purposes, the French Alternative Energies and Atomic Energy Commission (CEA) is currently working on the implementation of a predictive transient two-phase flow 4-quadrant rotodynamic pump model in the CATHARE-3 code (Code for Analysis of THermalhydraulics during an Accident of Reactor and safety Evaluation). This paper presents the pump model and its validation in single-phase first quadrant conditions at component scale. Explanations are first given on code architecture, meshing, equations to solve and how to switch from fixed frame to rotating frame and vice versa at impeller endpoints. Then, verification results in an ideal case are compared to Euler equations. Finally, validation results on real cases including the prediction of single-phase first quadrant steady performance curves and the simulation of a fast startup transient are presented.