On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis
The method based on the continuous wavelet transformation to detect and characterize two-dimensional vortex is analyzed for a synthetic flow and applied to vortex detection of propeller wake. The characteristics of a vortex, such as center location, core radius, and circulation, are extracted based...
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2015-01-01
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Series: | Mathematical Problems in Engineering |
Online Access: | http://dx.doi.org/10.1155/2015/242917 |
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doaj-4b8e9ea016104c7292119f8d947c17472020-11-24T22:51:16ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472015-01-01201510.1155/2015/242917242917On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake AnalysisLifeng Wang0Ruifeng Hu1Jun Zhang2Yunpeng Ma3School of Aeronautic Science and Technology, Beihang University, Beijing 100191, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaChina Ship Scientific Research Center, Wuxi 214082, ChinaSchool of Aeronautic Science and Technology, Beihang University, Beijing 100191, ChinaThe method based on the continuous wavelet transformation to detect and characterize two-dimensional vortex is analyzed for a synthetic flow and applied to vortex detection of propeller wake. The characteristics of a vortex, such as center location, core radius, and circulation, are extracted based on the Lamb-Oseen and Rankine vortex models, the latter of which is a novel attempt. The effects of various factors such as the difference scheme, the grid and scale discretization, transform variable, and vortex model on vortex detection have been investigated thoroughly. The method is further applied to identify the tip vortex in a propeller wake.http://dx.doi.org/10.1155/2015/242917 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lifeng Wang Ruifeng Hu Jun Zhang Yunpeng Ma |
spellingShingle |
Lifeng Wang Ruifeng Hu Jun Zhang Yunpeng Ma On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis Mathematical Problems in Engineering |
author_facet |
Lifeng Wang Ruifeng Hu Jun Zhang Yunpeng Ma |
author_sort |
Lifeng Wang |
title |
On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis |
title_short |
On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis |
title_full |
On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis |
title_fullStr |
On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis |
title_full_unstemmed |
On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis |
title_sort |
on the vortex detection method using continuous wavelet transform with application to propeller wake analysis |
publisher |
Hindawi Limited |
series |
Mathematical Problems in Engineering |
issn |
1024-123X 1563-5147 |
publishDate |
2015-01-01 |
description |
The method based on the continuous wavelet transformation to detect and characterize two-dimensional vortex is analyzed for a synthetic flow and applied to vortex detection of propeller wake. The characteristics of a vortex, such as center location, core radius, and circulation, are extracted based on the Lamb-Oseen and Rankine vortex models, the latter of which is a novel attempt. The effects of various factors such as the difference scheme, the grid and scale discretization, transform variable, and vortex model on vortex detection have been investigated thoroughly. The method is further applied to identify the tip vortex in a propeller wake. |
url |
http://dx.doi.org/10.1155/2015/242917 |
work_keys_str_mv |
AT lifengwang onthevortexdetectionmethodusingcontinuouswavelettransformwithapplicationtopropellerwakeanalysis AT ruifenghu onthevortexdetectionmethodusingcontinuouswavelettransformwithapplicationtopropellerwakeanalysis AT junzhang onthevortexdetectionmethodusingcontinuouswavelettransformwithapplicationtopropellerwakeanalysis AT yunpengma onthevortexdetectionmethodusingcontinuouswavelettransformwithapplicationtopropellerwakeanalysis |
_version_ |
1725670623876743168 |