Environmental engineering research2024，Vol.29Issue(6) ：21-31.DOI:10.4491/eer.2023.712

Simulations of low impact development designs using the storm water management model

Jang, Jiyi Kim, Soobin Cha, Sung Min Pyo, Jongcheol Yoon, Kwang-Sik Lee, Hankyu Park, Yongeun Jang, In-Su Kim, Kwang-Ju Yu, Jung-Won Kang, Mi-Seon Bae, Hyan-Su Baek, Sang-Soo Cho, Kyung Hwa
Environmental engineering research2024，Vol.29Issue(6) ：21-31.DOI:10.4491/eer.2023.712
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Simulations of low impact development designs using the storm water management model

Jang, Jiyi 1Kim, Soobin 2Cha, Sung Min 3Pyo, Jongcheol 4Yoon, Kwang-Sik 5Lee, Hankyu 6Park, Yongeun 6Jang, In-Su 7Kim, Kwang-Ju 7Yu, Jung-Won 7Kang, Mi-Seon 7Bae, Hyan-Su 7Baek, Sang-Soo 1Cho, Kyung Hwa2
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作者信息

  • 1. Yeungnam University Department of Environmental Engineering
  • 2. Korea University School of Civil Environmental and Architectural Engineering
  • 3. Jeollanam Do Environm Ind Promot Inst JEIPI
  • 4. Pusan National University Department of Environmental Engineering
  • 5. Chonnam National University Department of Rural and Bio-systems Engineering||Chonnam Natl Univ
  • 6. Konkuk Univ
  • 7. Elect & Telecommun Res Inst ETRI
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Abstract

This study assessed the U.S. Environmental Protection Agency's Storm Water Management Model (SWMM) for urban water management challenges. This study conducted a sensitivity analysis to identify the most influential factors in the SWMM. Moreover, the performance of SWMM was evaluated with the HYDRUS-1D module in simulating infiltration rates. The sensitivity results showed field capacity as the most significant factor, highlighting the need for advanced modeling techniques to consider factors like field capacity. The SWMM was evaluated by the HYDRUS-1D that SWMM consistently underestimated peak infiltration rates and commenced infiltration calculations only when soil moisture exceeded field capacity. It reveals its limitations in handling unsaturated soil conditions and highlights the consideration of the matric head of the soil during the infiltration calculation in soil media. Moreover, the evaluation of bioretention areas showed larger areas resulting in more substantial flow reductions but with significant variability under different rainfall conditions. Accordingly, this result emphasizes the importance of careful consideration for environmental factors in bioretention design. This study contributes by enhancing understanding of SWMM's limitations in simulating urban water management challenges. Thus, this research will offer technical assistance to stakeholders focused on challenges such as runoff, hydrologic cycle, and urban flooding in urban areas.

Key words

Low-impact development/Sensitivity analysis/Storm water management model/Urban modeling

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出版年

2024
Environmental engineering research

Environmental engineering research

EISCI
ISSN：1226-1025
参考文献量61
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