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류시완;박재현;이남주;이종진
- 한국수자원학회:학술대회논문집
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- 한국수자원학회 2005년도 학술발표회 논문집
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- pp.372-376
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- 2005
본 연구에서는 다양한 유량 조건 하에서 수로의 만곡이 존재하고 하중토가 존재하는 비교적 복잡한 지형에 대한 수리모형실험에 LSPIV기법과 기존 점유속계(2차원 전자기유속계)를 함께 적용하고 그 결과를 비교하여 복잡한 흐름에 대한 LSPIV의 적용성을 검토하였다. LSPIV를 이용한 표면유속장과 2차원 전자기유속계를 이용하여 1점법으로 측정된 유속장을 비교할 때, 수로 만곡과 같은 지형적 특성으로 인한 유속분포의 특성이 유사하게 관측되었으며, 홍수시의 주변고수부지 및 하중도 침수로 인해 복잡한 흐름구조가 발생하는 경우에는 LSPIV를 이용한 표면유속장 측정을 통하여 흐름특성을 더욱 명확하게 관찰할 수 있었다. 측정된 유속자료 및 하도단면자료를 이용하여 홍수량을 산정해 본 결과 하도횡단면이 비교적 단순한 경우에는 표면유속과 점유속을 이용해 계산한 홍수량 간의 차가 크지 않았으나 하도단면이 복잡한 경우에는 계산된 홍수량 사이의 차가 크게 나타났다.
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경남호;윤정은;허종철;장동순
- 한국태양에너지학회 논문집
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- 제23권1호
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- pp.39-47
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- 2003
In order to test the predictability of the wind resource assessment computer code in our country a field experiment and prediction by WAsP has been compared. A field experiment has been performed in Songdang province, Jeju island, composed of sea, inland flat terrain, a high and a low slope craters. For this experiment, four meteorological towers have been installed at seashores, inland flat and on a crater. Wind resource at one site is predicted by WAsF with the meteorological data at the other three sites. The comparisons show that the WAsP preditions give better agreement with experimental data by adjusting the roughness descriptions.
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윤광용;백인수;유능수
- 한국신재생에너지학회:학술대회논문집
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- 한국신재생에너지학회 2008년도 추계학술대회 논문집
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- pp.268-273
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- 2008
A linear wind prediction program, WAsP, was employed to predict wind speed at two different sites located in complex terrain in South Korea. The reference data obtained at locations more than 7 kilometers away from the prediction sites were used for prediction. The predictions from the linear model were compared with the measured data at the two prediction sites. Two compensation methods such as a self-prediction error method and a delta ruggedness index (RIX) method were used to improve the wind speed prediction from WAsP and showed a good possibility. The wind speed prediction errors reached within 3.5 % with the self prediction error method, and within 10% with the delta RIX method. The self prediction error method can be used as a compensation method to reduce the wind speed prediction error in WAsP.
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경남호;윤정은;장문석;장동순;허종철
- 한국태양에너지학회 논문집
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- 제23권4호
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- pp.21-27
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- 2003
The comparative performance of the WAsP in calculating the wind climate in complex terrain has been examined in order to test the predictability of the wind resource assessment computer code in our country. An analysis was carried out of predicted and experimental 10-min averaged wind data collected over 8 months at four monitoring sites in SongDang province, Jeju island, composed of sea, inland flat terrain, a high and a low slope craters. The comparisons show that the WAsP preditions give better agreement with experimental data by adjusting the roughness descriptions, the obstacle list.
PDF KSCI