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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Main Authors:	Lifeng Wang, Ruifeng Hu, Jun Zhang, Yunpeng Ma
Format:	Article
Language:	English
Published:	Hindawi Limited 2015-01-01
Series:	Mathematical Problems in Engineering
Online Access:	http://dx.doi.org/10.1155/2015/242917

id	doaj-4b8e9ea016104c7292119f8d947c1747
record_format	Article
spelling	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

On the Vortex Detection Method Using Continuous Wavelet Transform with Application to Propeller Wake Analysis

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