The influence of aspect ratio on vortex evolution induced by a solitary wave propagating over a cavity

C. Lin; T. C. Ho; C. S. Chang

The influence of aspect ratio on vortex evolution induced by a solitary wave propagating over a cavity

C. Lin, T. C. Ho, C. S. Chang

Laboratory of Hydraulic Test

Research output: Contribution to conference › Paper › peer-review

Abstract

The vortex shedding process induced by a solitary wave propagating over a symmetric cavity was studied experimentally, using the particle image velocimetry (PIV) technique and flow visualization technique. The wave height of the solitary wave is 1.4 cm, and the wave height (H) to water depth (h) of the experiment is 0.2. The ratio of the length to the depth of the cavity, A _r, was defined as aspect ratio. The vortex shedding processes were investigated particularly for A_r = 0.5 using the flow visualization technique and PIV. The quantitative characteristics of shedding primary vortex in the cavity, such as the trajectories of the vortex core and jet like flow, vorticity of the primary vortex core, and the circulation of the primary vortex, were studied in detail. Finally, it is found that all the characteristics change obviously while A_r is less than 1.0.

Original language	English
Pages	1159-1170
Number of pages	12
Publication status	Published - 2007
Event	8th International Conference on the Mediterranean Coastal Environment, MEDCOAST 2007 - Alexandria, Egypt Duration: 2007 Nov 13 → 2007 Nov 17

Conference

Conference	8th International Conference on the Mediterranean Coastal Environment, MEDCOAST 2007
Country/Territory	Egypt
City	Alexandria
Period	07-11-13 → 07-11-17

All Science Journal Classification (ASJC) codes

Geography, Planning and Development

Cite this

@conference{20244b718067455bae4dff28b9e34a55,

title = "The influence of aspect ratio on vortex evolution induced by a solitary wave propagating over a cavity",

abstract = "The vortex shedding process induced by a solitary wave propagating over a symmetric cavity was studied experimentally, using the particle image velocimetry (PIV) technique and flow visualization technique. The wave height of the solitary wave is 1.4 cm, and the wave height (H) to water depth (h) of the experiment is 0.2. The ratio of the length to the depth of the cavity, A r, was defined as aspect ratio. The vortex shedding processes were investigated particularly for Ar = 0.5 using the flow visualization technique and PIV. The quantitative characteristics of shedding primary vortex in the cavity, such as the trajectories of the vortex core and jet like flow, vorticity of the primary vortex core, and the circulation of the primary vortex, were studied in detail. Finally, it is found that all the characteristics change obviously while Ar is less than 1.0.",

author = "C. Lin and Ho, {T. C.} and Chang, {C. S.}",

year = "2007",

language = "English",

pages = "1159--1170",

note = "8th International Conference on the Mediterranean Coastal Environment, MEDCOAST 2007 ; Conference date: 13-11-2007 Through 17-11-2007",

}

TY - CONF

T1 - The influence of aspect ratio on vortex evolution induced by a solitary wave propagating over a cavity

AU - Lin, C.

AU - Ho, T. C.

AU - Chang, C. S.

PY - 2007

Y1 - 2007

N2 - The vortex shedding process induced by a solitary wave propagating over a symmetric cavity was studied experimentally, using the particle image velocimetry (PIV) technique and flow visualization technique. The wave height of the solitary wave is 1.4 cm, and the wave height (H) to water depth (h) of the experiment is 0.2. The ratio of the length to the depth of the cavity, A r, was defined as aspect ratio. The vortex shedding processes were investigated particularly for Ar = 0.5 using the flow visualization technique and PIV. The quantitative characteristics of shedding primary vortex in the cavity, such as the trajectories of the vortex core and jet like flow, vorticity of the primary vortex core, and the circulation of the primary vortex, were studied in detail. Finally, it is found that all the characteristics change obviously while Ar is less than 1.0.

AB - The vortex shedding process induced by a solitary wave propagating over a symmetric cavity was studied experimentally, using the particle image velocimetry (PIV) technique and flow visualization technique. The wave height of the solitary wave is 1.4 cm, and the wave height (H) to water depth (h) of the experiment is 0.2. The ratio of the length to the depth of the cavity, A r, was defined as aspect ratio. The vortex shedding processes were investigated particularly for Ar = 0.5 using the flow visualization technique and PIV. The quantitative characteristics of shedding primary vortex in the cavity, such as the trajectories of the vortex core and jet like flow, vorticity of the primary vortex core, and the circulation of the primary vortex, were studied in detail. Finally, it is found that all the characteristics change obviously while Ar is less than 1.0.

UR - http://www.scopus.com/inward/record.url?scp=84900813660&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84900813660&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84900813660

SP - 1159

EP - 1170

T2 - 8th International Conference on the Mediterranean Coastal Environment, MEDCOAST 2007

Y2 - 13 November 2007 through 17 November 2007

ER -

The influence of aspect ratio on vortex evolution induced by a solitary wave propagating over a cavity

Abstract

Conference

All Science Journal Classification (ASJC) codes

Other files and links

Fingerprint

Cite this