Simulation of compound flooding using TUFLOW's 1D-2D coupling features

Donggyu Hwang; Teauk Kang; Yongkyu Jin; Sangho Lee

doi:10.3741/JKWRA.2024.57.7.451

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2024 Vol.57, Issue 7 Preview Page Next Page

Research Article

Simulation of compound flooding using TUFLOW's 1D-2D coupling features TUFLOW의 1-2차원 연계 기능을 활용한 복합 침수 모의

31 July 2024. pp. 451-460

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Abstract

It is necessary to apply a rational urban flood simulation method to analyze the causes of frequent urban flooding and to develop appropriate countermeasures. Previous studies in Korea have performed flood simulations by inputting the results of manhole overflow from sewer systems and river overflow into two-dimensional flood flow simulation models. It, however, is reasonable to simulate flooding from river and manhole overflows in a complex manner. In this study, we used the 1D-2D coupling functionality of the TUFLOW module, which is a part of XP-SWMM, to simulate the compound flooding of rivers and urban areas. That method was applied to the lower basin of the Naengcheon River in Pohang City, Gyeongsangbuk-do, where both inland flooding and river overflow coincided due to Typhoon Hinnamnor on September 5 and 6, 2022, to verify its applicability.

Keywords

XP-SWMM

TUFLOW

1D-2D coupling

Compound flooding simulation

빈발하고 있는 도시 지역 침수 피해의 원인을 분석하고 대책을 수립하기 위하여 합리적인 도시 침수 모의 방법을 적용할 필요가 있다. 기존의 국내 연구들은 하수 관거의 맨홀 범람과 하천의 범람 결과를 2차원 범람 유동 모의 모형에 입력하여 침수 모의를 수행하였다. 그렇지만 하천과 맨홀 범람의 침수 모의는 결합하여 분석하는 것이 합리적이다. 이 연구에서는 XP-SWMM을 구성하는 TUFLOW 모듈의 1-2차원 연계 기능을 사용하여 하천과 제내지의 복합 침수 모의를 수행하였다. 해당 방법을 2022년 9월 5일과 6일 태풍 힌남노로 인한 내수 침수와 하천 범람이 동시에 발생한 경상북도 포항시 냉천 하류 유역에 적용하여 적절성을 검증하였다.

키워드

XP-SWMM

TUFLOW

1-2차원 연계

복합 침수 모의

References

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Information

Publisher :KOREA WATER RESOURECES ASSOCIATION
Publisher(Ko) :한국수자원학회
Journal Title :Journal of Korea Water Resources Association
Journal Title(Ko) :한국수자원학회 논문집
Volume : 57
No :7
Pages :451-460
Received Date : 2024-06-14
Revised Date : 2024-06-19
Accepted Date : 2024-06-21
DOI :https://doi.org/10.3741/JKWRA.2024.57.7.451

Journal of Korea Water Resources Association ISSN:2799-8746(Print) 2799-8754(Online) 한국수자원학회 논문집

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