DocumentCode
518136
Title
Notice of Retraction
A hybrid BFGS-based method and its applications in pipeline steady simulation
Author
Xu Bo ; Chen Guoqun ; Zhao Zhu ; Li Jianting ; Wang Deji
Author_Institution
PetroChina Pipeline R&D Center, Langfang, China
Volume
4
fYear
2010
fDate
16-18 April 2010
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
A hybrid BFGS-based method with global mesh refinement is presented to deal with pipeline simulation problems. In this method, a coarse mesh is first constructed. When the solution point for the computing nodes of this mesh is close to the optimal solution, a refine mesh is constructed thereafter. The value on the computing nodes of the refine mesh is defined by interpolation from the previous solution point. Then the final solution is obtained by the method. Two typical applications for pipeline simulation are given. Results obtained by the hybrid method are compared with those obtained by using a commercial software package to validate its accuracy. Results show that the average error is about 1%. The efficiency of this method is compared with the efficiency of a typical Quasi-Newton method. Numerical tests show that the method saves about 45%-53% compared with “standard” methods.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
A hybrid BFGS-based method with global mesh refinement is presented to deal with pipeline simulation problems. In this method, a coarse mesh is first constructed. When the solution point for the computing nodes of this mesh is close to the optimal solution, a refine mesh is constructed thereafter. The value on the computing nodes of the refine mesh is defined by interpolation from the previous solution point. Then the final solution is obtained by the method. Two typical applications for pipeline simulation are given. Results obtained by the hybrid method are compared with those obtained by using a commercial software package to validate its accuracy. Results show that the average error is about 1%. The efficiency of this method is compared with the efficiency of a typical Quasi-Newton method. Numerical tests show that the method saves about 45%-53% compared with “standard” methods.
Keywords
Newton method; flow simulation; interpolation; mesh generation; pipelines; global mesh refinement; hybrid BFGS-based method; interpolation; pipeline steady flow simulation; Cities and towns; Computational modeling; Energy conservation; Fluid flow; Friction; Jacobian matrices; Nonlinear equations; Packaging; Pipelines; Temperature; BFGS method; mesh refinement; non-linear; pipeline simulation;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-6347-3
Type
conf
DOI
10.1109/ICCET.2010.5485725
Filename
5485725
Link To Document