CLC number: TH313
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2019-10-28
Cited: 0
Clicked: 4676
Citations: Bibtex RefMan EndNote GB/T7714
Jia-ming Wang, Peng-fei Wang, Xu Zhang, Xiao-dong Ruan, Xin Fu. An adjoint-based optimization method for reducing the axial force of a reactor coolant pump[J]. Journal of Zhejiang University Science A, 2019, 20(11): 852-863.
@article{title="An adjoint-based optimization method for reducing the axial force of a reactor coolant pump",
author="Jia-ming Wang, Peng-fei Wang, Xu Zhang, Xiao-dong Ruan, Xin Fu",
journal="Journal of Zhejiang University Science A",
volume="20",
number="11",
pages="852-863",
year="2019",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1900156"
}
%0 Journal Article
%T An adjoint-based optimization method for reducing the axial force of a reactor coolant pump
%A Jia-ming Wang
%A Peng-fei Wang
%A Xu Zhang
%A Xiao-dong Ruan
%A Xin Fu
%J Journal of Zhejiang University SCIENCE A
%V 20
%N 11
%P 852-863
%@ 1673-565X
%D 2019
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1900156
TY - JOUR
T1 - An adjoint-based optimization method for reducing the axial force of a reactor coolant pump
A1 - Jia-ming Wang
A1 - Peng-fei Wang
A1 - Xu Zhang
A1 - Xiao-dong Ruan
A1 - Xin Fu
J0 - Journal of Zhejiang University Science A
VL - 20
IS - 11
SP - 852
EP - 863
%@ 1673-565X
Y1 - 2019
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1900156
Abstract: To alleviate the wear of a thrust bearing in a reactor coolant pump (RCP) while ensuring the hydraulic performance of the pump, an adjoint-based optimization method is proposed in this study. This method reduces the axial force of the RCP impeller and synchronously improves the impeller’s hydraulic efficiency. By combining the adjoint solution with the radial basis function (RBF)-based mesh deformation, the optimization proceeds along the gradient direction, which greatly reduces the time and cost of the calculation. In the adjoint method, the adjoint equations in the rotating coordinate system are established, a joint objective function of the head constraint, hydraulic efficiency, and axial force is expressed, and then the blade surface sensitivity to the joint objective function is determined. In the RBF mesh deformation, the control points on the blade strand are evenly spaced, which ensures the smoothness of the deformed 3D twisted blade. Using the proposed optimization method, the hydraulic axial force of the impeller is reduced by approximately 3.8%, while the hydraulic efficiency of a scaled RCP impeller is increased by approximately 3.2%, and the head remains at an almost constant value. The obtained results validate the feasibility of the adjoint method for optimizing the design of centrifugal pumps.
This paper researches the blade shape optimization of pump for efficiency, axial force and head performances. The adjoint method is used to calculate the sensitivity.
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