A CFD study on the performance of a passive ocean plastic collector under rough sea conditions

研究成果: Article

摘要

In this study, a commercial CFD code, STARCCM+, is used to analyze the performance of a passive ocean plastic collector under rough sea conditions. The CFD code was first validated by comparing with data from a scaled model experiment conducted in the towing water tank in National Cheng Kung University, and it was proven to return accurate catch rate. Then thirty-eight test cases were setup to investigate the effects of four different parameters, namely, ocean current speed, wave height, wave length, and plastic density, on the plastic collector's catch rate, which is the percentage of incoming plastic debris intercepted by the plastic collector. It was found that the parameters of wave length and plastic density posed very little effect on catch rate. In contrast, the effects of the other two parameters were significant. Two important thresholds were found, and they were ocean current speed of 2.5 ms−1 and wave height of 0.4 m. The catch rate remained at high level until these thresholds were reached. The information found in this study is invaluable for the design of a practical passive ocean plastic collector.

原文English
文章編號106243
期刊Ocean Engineering
188
DOIs
出版狀態Published - 2019 九月 15

指紋

Computational fluid dynamics
Plastics
Ocean currents
Wavelength
Water tanks
Debris
Experiments

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Ocean Engineering

引用此文

@article{c0cad3516d73422284f0c8c7a6adcec3,
title = "A CFD study on the performance of a passive ocean plastic collector under rough sea conditions",
abstract = "In this study, a commercial CFD code, STARCCM+, is used to analyze the performance of a passive ocean plastic collector under rough sea conditions. The CFD code was first validated by comparing with data from a scaled model experiment conducted in the towing water tank in National Cheng Kung University, and it was proven to return accurate catch rate. Then thirty-eight test cases were setup to investigate the effects of four different parameters, namely, ocean current speed, wave height, wave length, and plastic density, on the plastic collector's catch rate, which is the percentage of incoming plastic debris intercepted by the plastic collector. It was found that the parameters of wave length and plastic density posed very little effect on catch rate. In contrast, the effects of the other two parameters were significant. Two important thresholds were found, and they were ocean current speed of 2.5 ms−1 and wave height of 0.4 m. The catch rate remained at high level until these thresholds were reached. The information found in this study is invaluable for the design of a practical passive ocean plastic collector.",
author = "Shaw, {Heiu Jou} and Chen, {Wen Lih} and Li, {Yueh Heng}",
year = "2019",
month = "9",
day = "15",
doi = "10.1016/j.oceaneng.2019.106243",
language = "English",
volume = "188",
journal = "Ocean Engineering",
issn = "0029-8018",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - A CFD study on the performance of a passive ocean plastic collector under rough sea conditions

AU - Shaw, Heiu Jou

AU - Chen, Wen Lih

AU - Li, Yueh Heng

PY - 2019/9/15

Y1 - 2019/9/15

N2 - In this study, a commercial CFD code, STARCCM+, is used to analyze the performance of a passive ocean plastic collector under rough sea conditions. The CFD code was first validated by comparing with data from a scaled model experiment conducted in the towing water tank in National Cheng Kung University, and it was proven to return accurate catch rate. Then thirty-eight test cases were setup to investigate the effects of four different parameters, namely, ocean current speed, wave height, wave length, and plastic density, on the plastic collector's catch rate, which is the percentage of incoming plastic debris intercepted by the plastic collector. It was found that the parameters of wave length and plastic density posed very little effect on catch rate. In contrast, the effects of the other two parameters were significant. Two important thresholds were found, and they were ocean current speed of 2.5 ms−1 and wave height of 0.4 m. The catch rate remained at high level until these thresholds were reached. The information found in this study is invaluable for the design of a practical passive ocean plastic collector.

AB - In this study, a commercial CFD code, STARCCM+, is used to analyze the performance of a passive ocean plastic collector under rough sea conditions. The CFD code was first validated by comparing with data from a scaled model experiment conducted in the towing water tank in National Cheng Kung University, and it was proven to return accurate catch rate. Then thirty-eight test cases were setup to investigate the effects of four different parameters, namely, ocean current speed, wave height, wave length, and plastic density, on the plastic collector's catch rate, which is the percentage of incoming plastic debris intercepted by the plastic collector. It was found that the parameters of wave length and plastic density posed very little effect on catch rate. In contrast, the effects of the other two parameters were significant. Two important thresholds were found, and they were ocean current speed of 2.5 ms−1 and wave height of 0.4 m. The catch rate remained at high level until these thresholds were reached. The information found in this study is invaluable for the design of a practical passive ocean plastic collector.

UR - http://www.scopus.com/inward/record.url?scp=85073642669&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85073642669&partnerID=8YFLogxK

U2 - 10.1016/j.oceaneng.2019.106243

DO - 10.1016/j.oceaneng.2019.106243

M3 - Article

AN - SCOPUS:85073642669

VL - 188

JO - Ocean Engineering

JF - Ocean Engineering

SN - 0029-8018

M1 - 106243

ER -