Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder

Hiroshi Hasebe; Tsubasa Kosugi; Shion Hatamoto; Taito Kawai; Syunya Nakayama; Takashi Nomuta

doi:10.3850/978-981-07-8012-8_193

Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder

Hiroshi Hasebe, Tsubasa Kosugi, Shion Hatamoto, Taito Kawai, Syunya Nakayama, Takashi Nomuta

College of Bioresource Sciences

Nihon University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Recently, the importance of maintenance to infrastructures has been increasing. One of the most important points in bridge maintenance is to prevent its corrosion. Especially, it is necessary to predict the advection diffusion behavior of airborne sea salt around a bridge girder because bridges located in coastal areas are affected by it. In the present study, in order to predict the behavior of airborne sea salt, we conducted flow visualizations around a square cylinder and a bridge girder which has two I-girders. Then we evaluated smoke concentration of the visualized flows by using the image processing technique. As a result, it is confirmed that smoke concentration of the inner region of the separated shear layer is very small. Therefore, it can be estimated amount of airborne sea salt inside the separated shear layer region is smaller than other regions.

Original language	English
Title of host publication	Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013
Editors	Nagesh R. Iyer, Prem Krishna, Rajan S. Selvi, P. Harikrishna
Publisher	Research Publishing Services
Pages	150-157
Number of pages	8
ISBN (Electronic)	9789810780111
DOIs	https://doi.org/10.3850/978-981-07-8012-8_193
Publication status	Published - 2013
Event	8th Asia-Pacific Conference on Wind Engineering, APCWE 2013 - Chennai, India Duration: 10 Dec 2013 → 14 Dec 2013

Publication series

Name	Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013

Conference

Conference	8th Asia-Pacific Conference on Wind Engineering, APCWE 2013
Country/Territory	India
City	Chennai
Period	10/12/13 → 14/12/13

Keywords

Airborne sea salt
Bridge girder
Flow visualization
Image processing technique

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.3850/978-981-07-8012-8_193

Cite this

Hasebe, H., Kosugi, T., Hatamoto, S., Kawai, T., Nakayama, S., & Nomuta, T. (2013). Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder. In N. R. Iyer, P. Krishna, R. S. Selvi, & P. Harikrishna (Eds.), Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013 (pp. 150-157). (Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013). Research Publishing Services. https://doi.org/10.3850/978-981-07-8012-8_193

Hasebe, Hiroshi ; Kosugi, Tsubasa ; Hatamoto, Shion et al. / Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder. Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013. editor / Nagesh R. Iyer ; Prem Krishna ; Rajan S. Selvi ; P. Harikrishna. Research Publishing Services, 2013. pp. 150-157 (Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013).

@inproceedings{79abbbbb59084104860a70596d9d2a46,

title = "Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder",

abstract = "Recently, the importance of maintenance to infrastructures has been increasing. One of the most important points in bridge maintenance is to prevent its corrosion. Especially, it is necessary to predict the advection diffusion behavior of airborne sea salt around a bridge girder because bridges located in coastal areas are affected by it. In the present study, in order to predict the behavior of airborne sea salt, we conducted flow visualizations around a square cylinder and a bridge girder which has two I-girders. Then we evaluated smoke concentration of the visualized flows by using the image processing technique. As a result, it is confirmed that smoke concentration of the inner region of the separated shear layer is very small. Therefore, it can be estimated amount of airborne sea salt inside the separated shear layer region is smaller than other regions.",

keywords = "Airborne sea salt, Bridge girder, Flow visualization, Image processing technique",

author = "Hiroshi Hasebe and Tsubasa Kosugi and Shion Hatamoto and Taito Kawai and Syunya Nakayama and Takashi Nomuta",

note = "Publisher Copyright: Copyright {\textcopyright} 2013 APCWE-VIII. All rights reserved. Published by Research Publishing, Singapore.; 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013 ; Conference date: 10-12-2013 Through 14-12-2013",

year = "2013",

doi = "10.3850/978-981-07-8012-8_193",

language = "English",

series = "Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013",

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pages = "150--157",

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Hasebe, H, Kosugi, T, Hatamoto, S, Kawai, T, Nakayama, S & Nomuta, T 2013, Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder. in NR Iyer, P Krishna, RS Selvi & P Harikrishna (eds), Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013. Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013, Research Publishing Services, pp. 150-157, 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013, Chennai, India, 10/12/13. https://doi.org/10.3850/978-981-07-8012-8_193

Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder. / Hasebe, Hiroshi; Kosugi, Tsubasa; Hatamoto, Shion et al.
Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013. ed. / Nagesh R. Iyer; Prem Krishna; Rajan S. Selvi; P. Harikrishna. Research Publishing Services, 2013. p. 150-157 (Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder

AU - Hasebe, Hiroshi

AU - Kosugi, Tsubasa

AU - Hatamoto, Shion

AU - Kawai, Taito

AU - Nakayama, Syunya

AU - Nomuta, Takashi

PY - 2013

Y1 - 2013

N2 - Recently, the importance of maintenance to infrastructures has been increasing. One of the most important points in bridge maintenance is to prevent its corrosion. Especially, it is necessary to predict the advection diffusion behavior of airborne sea salt around a bridge girder because bridges located in coastal areas are affected by it. In the present study, in order to predict the behavior of airborne sea salt, we conducted flow visualizations around a square cylinder and a bridge girder which has two I-girders. Then we evaluated smoke concentration of the visualized flows by using the image processing technique. As a result, it is confirmed that smoke concentration of the inner region of the separated shear layer is very small. Therefore, it can be estimated amount of airborne sea salt inside the separated shear layer region is smaller than other regions.

AB - Recently, the importance of maintenance to infrastructures has been increasing. One of the most important points in bridge maintenance is to prevent its corrosion. Especially, it is necessary to predict the advection diffusion behavior of airborne sea salt around a bridge girder because bridges located in coastal areas are affected by it. In the present study, in order to predict the behavior of airborne sea salt, we conducted flow visualizations around a square cylinder and a bridge girder which has two I-girders. Then we evaluated smoke concentration of the visualized flows by using the image processing technique. As a result, it is confirmed that smoke concentration of the inner region of the separated shear layer is very small. Therefore, it can be estimated amount of airborne sea salt inside the separated shear layer region is smaller than other regions.

KW - Airborne sea salt

KW - Bridge girder

KW - Flow visualization

KW - Image processing technique

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AN - SCOPUS:84992424739

T3 - Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013

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BT - Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013

A2 - Iyer, Nagesh R.

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ER -

Hasebe H, Kosugi T, Hatamoto S, Kawai T, Nakayama S, Nomuta T. Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder. In Iyer NR, Krishna P, Selvi RS, Harikrishna P, editors, Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013. Research Publishing Services. 2013. p. 150-157. (Proceedings of the 8th Asia-Pacific Conference on Wind Engineering, APCWE 2013). doi: 10.3850/978-981-07-8012-8_193

Image processing technique of smoke flow visualization for the prediction of behavior of airborne sea salt around a bridge girder

Abstract

Publication series

Conference

Keywords

UN SDGs

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