DocumentCode
3594627
Title
Notice of Retraction
Aerodynamic noise prediction using grey model
Author
Long Shuangli ; Nie Hong ; Li Lei ; Xu Xin
Author_Institution
Key Lab. of Fundamental Sci. for Nat., Univ. of Aeronaut. & Astronaut., Nanjing, China
Volume
10
fYear
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.
In this paper, two methods are described to predict the aerodynamic noise induced by flow around a cylinder using the linear model GM (1, 1) and the nonlinear model Verhult based on grey system theory. The grey prediction initial data is from large eddy simulation and acoustic analogy. The prediction results using the model GM(1, 1) are respectively compared to the numerical simulation results and experiment data. The errors are less than 0.92% and 5.53% in the later. The prediction results based on the nonlinear model Verhulst are respectively compared to the numerical simulation results and experiment data. The errors are less than 0.61% and 4.54% respectively. It is shown that two methods using the grey models have good forecasting accuracy and excellent applicability to predict the noise induced by flow around a cylinder.
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.
In this paper, two methods are described to predict the aerodynamic noise induced by flow around a cylinder using the linear model GM (1, 1) and the nonlinear model Verhult based on grey system theory. The grey prediction initial data is from large eddy simulation and acoustic analogy. The prediction results using the model GM(1, 1) are respectively compared to the numerical simulation results and experiment data. The errors are less than 0.92% and 5.53% in the later. The prediction results based on the nonlinear model Verhulst are respectively compared to the numerical simulation results and experiment data. The errors are less than 0.61% and 4.54% respectively. It is shown that two methods using the grey models have good forecasting accuracy and excellent applicability to predict the noise induced by flow around a cylinder.
Keywords
acoustic noise; aerodynamics; confined flow; flow simulation; forecasting theory; grey systems; shapes (structures); acoustic analogy; aerodynamic noise prediction; cylinder; forecasting accuracy; grey model; grey prediction; grey system theory; large eddy simulation; nonlinear model Verhult; Aircraft; Atmospheric modeling; Computational modeling; Numerical simulation; Vehicles; acoustic analogy; large eddy simulation(LES); the model GM(1,1); the model Verhulst;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Print_ISBN
978-1-4244-7235-2
Type
conf
DOI
10.1109/ICCASM.2010.5622860
Filename
5622860
Link To Document