이동경계기법을 이용한 해수유동모형의 범람 적용성
Applicability on Inundation for Hydrodynamic Models adopting Moving Boundary Scheme
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초록
상용 해수유동 모형인 MIKE21 모형의 범람모의 적용성을 평가하기 위하여 월류량 산정기법이 적용된 해일범람모형과 함께 마산만에 적용하였다. 두 모형 모두 관측된 침수범위 및 침수고와 거의 일치하는 결과를 보여 정밀격자의 해일범람모형으로써의 적용성을 확인할 수 있었다. 특히 조간대 모의기법을 확장적용한 MIKE21 모형의 결과가 범람모형의 결과에 비해 뒤지지 않는 결과를 보여 범람에의 적용성은 매우 높은 것으로 판단된다. 또한 선행연구에서 도출된 가상태풍을 모의한 결과, 침수범위는 MAEMI 내습시와 거의 유사한 반면 침수고가 증가하는 것으로 모의되었다.
Abstract
MIKE21, a commercial hydrodynamic model, was applied at the Masan Bay to evaluate the model's applicability of simulating the inundation phenomena. A storm surge/inundation model which adopts overflow computation scheme was applied together for comparison. The results of both models show correspondence with not only observed inundation area but also inundation water depth to prove their ability as inundation models. Especially, the accuracy of the MIKE21 model, which just adopts wetting/drying scheme, does not seem to be behind the inundation model. Moreover, an inundation simulation of the virtual MAEMI which was generated at preceding study, was conducted. The inundation area of the virtual MAEMI is similar to that of the real MAEMI, but inundation water depth is deeper than the real MAEMI.
참고문헌 (27)
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