Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Appicability Evaluations of Dam Breach Floodwave Models

댐 붕괴 수치모형에 대한 적용성 평가

  • Han, Geon-Yeon (Dept. of Civil Engineering, Engineering College, Kyungpook National University) ;
  • Lee, Jae-Yeong (Dept. of Civil Engineering, Engineering College, Kyungpook National University, Dept. of Civil Engineering, Engineering College, HongIk National University)
  • 한건연 (경북대학교 공과대학 토목공학과) ;
  • 이재영 (경북대학교 공과대학 토목공학과, 홍익대학교 공과대학 토목공학과)
  • Published : 1998.04.01
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Abstract

Five dam-break floodwave models are t재 field data sets. The models included FLDWAV, SMPDBK, HEC-1, Tr66, and HEC Dimensionless Graph. The field data sets documented the disasters at Teton dam, and Yeunchun dam. The FLDWAV results are uesd to test the sensitivity of the floodwave to variations in Manning's roughness coefficient, breach size, and bottom slope. The HEC-1 analysis includes testing the sensitivity of the results to model parameters. The TR66 model and FLDWAV, with channel routing by TR66 in both cases. SMPDBK and the Dimensionless Graph procedure are applied without particular difficulties being encountered in both real world cases. It is necessary to analyze numerical limit of existing numerical models and then to apply the relatively accurate numerical model in real basin. It is found that FLDWAV model is superior in numerical accuracy and stability to any other model. This study will contribute to improve defect of numerical models and develop more precise numerical model for a efficient and rapid dam breach flood disaster predict.

Keywords

References

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