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A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction

SP Singh, G Biswas, Perumal Nithiarasu Orcid Logo

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, Volume: 23, Pages: 1449 - 1462

Swansea University Author: Perumal Nithiarasu Orcid Logo

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DOI (Published version): 10.1108/HFF-08-2012-0183

Abstract

Purpose - The purpose of this paper is to investigate the influence of forced, in-line oscillation of a circular cylinder on an incoming incompressible flow field at different Reynolds numbers.Design/methodology/approach - A space-time finite element approach is employed to model the flow around an...

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Published in: INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
Published: 2013
URI: https://cronfa.swan.ac.uk/Record/cronfa20245
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fullrecord <?xml version="1.0"?><rfc1807><datestamp>2015-03-02T13:35:41.9393051</datestamp><bib-version>v2</bib-version><id>20245</id><entry>2015-03-02</entry><title>A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction</title><swanseaauthors><author><sid>3b28bf59358fc2b9bd9a46897dbfc92d</sid><ORCID>0000-0002-4901-2980</ORCID><firstname>Perumal</firstname><surname>Nithiarasu</surname><name>Perumal Nithiarasu</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2015-03-02</date><deptcode>CIVL</deptcode><abstract>Purpose - The purpose of this paper is to investigate the influence of forced, in-line oscillation of a circular cylinder on an incoming incompressible flow field at different Reynolds numbers.Design/methodology/approach - A space-time finite element approach is employed to model the flow around an oscillating cylinder.Findings - The results show that two (25), four (2P, two pair) and three vortices (P + S, one pair and one single) are shed in each cycle. In addition, a 2P(o) mode is also observed, which is similar to the 2P mode but the vortices of the 2P(o) mode differ in strength. The 2P mode of vortex shedding is observed along the entire wake of the flow field and 2P(o) mode in the far wake. In some cases, the vortex street is transformed as it travels towards the exit to produce new patterns. One such pattern is observed for the first time in the present work, which is referred to as 2P(o)* mode. The drag and lift coefficients observed are perfectly periodic at a Reynolds number of 200 and they reach a chaotic pattern as the Reynolds number is increased to a value of 350.Originality/value - Originality of the paper lies in the observation of 2P vortex shedding mode or its variants in the downstream of the cylinder.</abstract><type>Journal Article</type><journal>INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT &amp; FLUID FLOW</journal><volume>23</volume><paginationStart>1449</paginationStart><paginationEnd>1462</paginationEnd><publisher/><keywords/><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2013</publishedYear><publishedDate>2013-12-31</publishedDate><doi>10.1108/HFF-08-2012-0183</doi><url/><notes></notes><college>COLLEGE NANME</college><department>Civil Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>CIVL</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2015-03-02T13:35:41.9393051</lastEdited><Created>2015-03-02T13:35:08.5553051</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering</level></path><authors><author><firstname>SP</firstname><surname>Singh</surname><order>1</order></author><author><firstname>G</firstname><surname>Biswas</surname><order>2</order></author><author><firstname>Perumal</firstname><surname>Nithiarasu</surname><orcid>0000-0002-4901-2980</orcid><order>3</order></author></authors><documents/><OutputDurs/></rfc1807>
spelling 2015-03-02T13:35:41.9393051 v2 20245 2015-03-02 A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 2015-03-02 CIVL Purpose - The purpose of this paper is to investigate the influence of forced, in-line oscillation of a circular cylinder on an incoming incompressible flow field at different Reynolds numbers.Design/methodology/approach - A space-time finite element approach is employed to model the flow around an oscillating cylinder.Findings - The results show that two (25), four (2P, two pair) and three vortices (P + S, one pair and one single) are shed in each cycle. In addition, a 2P(o) mode is also observed, which is similar to the 2P mode but the vortices of the 2P(o) mode differ in strength. The 2P mode of vortex shedding is observed along the entire wake of the flow field and 2P(o) mode in the far wake. In some cases, the vortex street is transformed as it travels towards the exit to produce new patterns. One such pattern is observed for the first time in the present work, which is referred to as 2P(o)* mode. The drag and lift coefficients observed are perfectly periodic at a Reynolds number of 200 and they reach a chaotic pattern as the Reynolds number is increased to a value of 350.Originality/value - Originality of the paper lies in the observation of 2P vortex shedding mode or its variants in the downstream of the cylinder. Journal Article INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW 23 1449 1462 31 12 2013 2013-12-31 10.1108/HFF-08-2012-0183 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2015-03-02T13:35:41.9393051 2015-03-02T13:35:08.5553051 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering SP Singh 1 G Biswas 2 Perumal Nithiarasu 0000-0002-4901-2980 3
title A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction
spellingShingle A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction
Perumal Nithiarasu
title_short A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction
title_full A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction
title_fullStr A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction
title_full_unstemmed A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction
title_sort A numerical study of vortex shedding from a circular cylinder vibrating in the in-line direction
author_id_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d
author_id_fullname_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu
author Perumal Nithiarasu
author2 SP Singh
G Biswas
Perumal Nithiarasu
format Journal article
container_title INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
container_volume 23
container_start_page 1449
publishDate 2013
institution Swansea University
doi_str_mv 10.1108/HFF-08-2012-0183
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 0
active_str 0
description Purpose - The purpose of this paper is to investigate the influence of forced, in-line oscillation of a circular cylinder on an incoming incompressible flow field at different Reynolds numbers.Design/methodology/approach - A space-time finite element approach is employed to model the flow around an oscillating cylinder.Findings - The results show that two (25), four (2P, two pair) and three vortices (P + S, one pair and one single) are shed in each cycle. In addition, a 2P(o) mode is also observed, which is similar to the 2P mode but the vortices of the 2P(o) mode differ in strength. The 2P mode of vortex shedding is observed along the entire wake of the flow field and 2P(o) mode in the far wake. In some cases, the vortex street is transformed as it travels towards the exit to produce new patterns. One such pattern is observed for the first time in the present work, which is referred to as 2P(o)* mode. The drag and lift coefficients observed are perfectly periodic at a Reynolds number of 200 and they reach a chaotic pattern as the Reynolds number is increased to a value of 350.Originality/value - Originality of the paper lies in the observation of 2P vortex shedding mode or its variants in the downstream of the cylinder.
published_date 2013-12-31T03:24:02Z
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score 10.937309

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