Numerical Simulation of Scour Depth in Open Channels of Tideland Dike

Jo Jong-Song

doi:doi:10.11648/j.ajname.20170204.12

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Numerical Simulation of Scour Depth in Open Channels of Tideland Dike

Jo Jong-Song

Published in American Journal of Naval Architecture and Marine Engineering (Volume 2, Issue 4)

Received: 14 July 2017 Accepted: 2 August 2017 Published: 4 September 2017

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Abstract

In the present study, the local scour and topographical change in open channels of a tideland dike are studied numerically. A 2D numerical model was presented for the simulation of scour depth in open channels of the tideland dike in the west of the DPR Korea. Because the computation using a 3D numerical model is time-consuming, the depth-averaged 2D numerical model is applied in the calculation of the scour depth. The numerical model is implemented by the method coupled finite element method with finite difference method. Generally, scour depth depends on flow velocity, bed material composition, and suspended sediment concentration. In the present study, as the width of open channel between tideland dikes decreased, the scoured depth dramatically increased due to increased flow velocity. For all the scenarios of damming up, however, the scoured depth increased very slightly in open channels with the width of 50 m. The numerical results showed that when damming up according to Scenario 1, the flow velocity and scoured depth are smallest.

Published in	American Journal of Naval Architecture and Marine Engineering (Volume 2, Issue 4)
DOI	10.11648/j.ajname.20170204.12
Page(s)	91-98
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Dike, Numerical Model, Open Channel, Scour Depth, Tideland

References

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APA Style

Jo Jong-Song. (2017). Numerical Simulation of Scour Depth in Open Channels of Tideland Dike. American Journal of Naval Architecture and Marine Engineering, 2(4), 91-98. https://doi.org/10.11648/j.ajname.20170204.12

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ACS Style

Jo Jong-Song. Numerical Simulation of Scour Depth in Open Channels of Tideland Dike. Am. J. Nav. Archit. Mar. Eng. 2017, 2(4), 91-98. doi: 10.11648/j.ajname.20170204.12

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AMA Style

Jo Jong-Song. Numerical Simulation of Scour Depth in Open Channels of Tideland Dike. Am J Nav Archit Mar Eng. 2017;2(4):91-98. doi: 10.11648/j.ajname.20170204.12

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@article{10.11648/j.ajname.20170204.12,
  author = {Jo Jong-Song},
  title = {Numerical Simulation of Scour Depth in Open Channels of Tideland Dike},
  journal = {American Journal of Naval Architecture and Marine Engineering},
  volume = {2},
  number = {4},
  pages = {91-98},
  doi = {10.11648/j.ajname.20170204.12},
  url = {https://doi.org/10.11648/j.ajname.20170204.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajname.20170204.12},
  abstract = {In the present study, the local scour and topographical change in open channels of a tideland dike are studied numerically. A 2D numerical model was presented for the simulation of scour depth in open channels of the tideland dike in the west of the DPR Korea. Because the computation using a 3D numerical model is time-consuming, the depth-averaged 2D numerical model is applied in the calculation of the scour depth. The numerical model is implemented by the method coupled finite element method with finite difference method. Generally, scour depth depends on flow velocity, bed material composition, and suspended sediment concentration. In the present study, as the width of open channel between tideland dikes decreased, the scoured depth dramatically increased due to increased flow velocity. For all the scenarios of damming up, however, the scoured depth increased very slightly in open channels with the width of 50 m. The numerical results showed that when damming up according to Scenario 1, the flow velocity and scoured depth are smallest.},
 year = {2017}
}

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TY  - JOUR
T1  - Numerical Simulation of Scour Depth in Open Channels of Tideland Dike
AU  - Jo Jong-Song
Y1  - 2017/09/04
PY  - 2017
N1  - https://doi.org/10.11648/j.ajname.20170204.12
DO  - 10.11648/j.ajname.20170204.12
T2  - American Journal of Naval Architecture and Marine Engineering
JF  - American Journal of Naval Architecture and Marine Engineering
JO  - American Journal of Naval Architecture and Marine Engineering
SP  - 91
EP  - 98
PB  - Science Publishing Group
UR  - https://doi.org/10.11648/j.ajname.20170204.12
AB  - In the present study, the local scour and topographical change in open channels of a tideland dike are studied numerically. A 2D numerical model was presented for the simulation of scour depth in open channels of the tideland dike in the west of the DPR Korea. Because the computation using a 3D numerical model is time-consuming, the depth-averaged 2D numerical model is applied in the calculation of the scour depth. The numerical model is implemented by the method coupled finite element method with finite difference method. Generally, scour depth depends on flow velocity, bed material composition, and suspended sediment concentration. In the present study, as the width of open channel between tideland dikes decreased, the scoured depth dramatically increased due to increased flow velocity. For all the scenarios of damming up, however, the scoured depth increased very slightly in open channels with the width of 50 m. The numerical results showed that when damming up according to Scenario 1, the flow velocity and scoured depth are smallest.
VL  - 2
IS  - 4
ER  -

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Author Information

Jo Jong-Song

Faculty of Earth and Environmental Science, Kim Il Sung University, Pyongyang, Democratic People’s Republic of Korea

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APA Style

Jo Jong-Song. (2017). Numerical Simulation of Scour Depth in Open Channels of Tideland Dike. American Journal of Naval Architecture and Marine Engineering, 2(4), 91-98. https://doi.org/10.11648/j.ajname.20170204.12

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ACS Style

Jo Jong-Song. Numerical Simulation of Scour Depth in Open Channels of Tideland Dike. Am. J. Nav. Archit. Mar. Eng. 2017, 2(4), 91-98. doi: 10.11648/j.ajname.20170204.12

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AMA Style

Jo Jong-Song. Numerical Simulation of Scour Depth in Open Channels of Tideland Dike. Am J Nav Archit Mar Eng. 2017;2(4):91-98. doi: 10.11648/j.ajname.20170204.12

Copy | Download

@article{10.11648/j.ajname.20170204.12,
  author = {Jo Jong-Song},
  title = {Numerical Simulation of Scour Depth in Open Channels of Tideland Dike},
  journal = {American Journal of Naval Architecture and Marine Engineering},
  volume = {2},
  number = {4},
  pages = {91-98},
  doi = {10.11648/j.ajname.20170204.12},
  url = {https://doi.org/10.11648/j.ajname.20170204.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajname.20170204.12},
  abstract = {In the present study, the local scour and topographical change in open channels of a tideland dike are studied numerically. A 2D numerical model was presented for the simulation of scour depth in open channels of the tideland dike in the west of the DPR Korea. Because the computation using a 3D numerical model is time-consuming, the depth-averaged 2D numerical model is applied in the calculation of the scour depth. The numerical model is implemented by the method coupled finite element method with finite difference method. Generally, scour depth depends on flow velocity, bed material composition, and suspended sediment concentration. In the present study, as the width of open channel between tideland dikes decreased, the scoured depth dramatically increased due to increased flow velocity. For all the scenarios of damming up, however, the scoured depth increased very slightly in open channels with the width of 50 m. The numerical results showed that when damming up according to Scenario 1, the flow velocity and scoured depth are smallest.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Numerical Simulation of Scour Depth in Open Channels of Tideland Dike
AU  - Jo Jong-Song
Y1  - 2017/09/04
PY  - 2017
N1  - https://doi.org/10.11648/j.ajname.20170204.12
DO  - 10.11648/j.ajname.20170204.12
T2  - American Journal of Naval Architecture and Marine Engineering
JF  - American Journal of Naval Architecture and Marine Engineering
JO  - American Journal of Naval Architecture and Marine Engineering
SP  - 91
EP  - 98
PB  - Science Publishing Group
UR  - https://doi.org/10.11648/j.ajname.20170204.12
AB  - In the present study, the local scour and topographical change in open channels of a tideland dike are studied numerically. A 2D numerical model was presented for the simulation of scour depth in open channels of the tideland dike in the west of the DPR Korea. Because the computation using a 3D numerical model is time-consuming, the depth-averaged 2D numerical model is applied in the calculation of the scour depth. The numerical model is implemented by the method coupled finite element method with finite difference method. Generally, scour depth depends on flow velocity, bed material composition, and suspended sediment concentration. In the present study, as the width of open channel between tideland dikes decreased, the scoured depth dramatically increased due to increased flow velocity. For all the scenarios of damming up, however, the scoured depth increased very slightly in open channels with the width of 50 m. The numerical results showed that when damming up according to Scenario 1, the flow velocity and scoured depth are smallest.
VL  - 2
IS  - 4
ER  -

Copy | Download