CAJ | 학술논문

采用数值模拟的方法研究不同布置方位角下丁坝群的近体流场分布情况。结果表明绕丁坝的近场流动具有强三维非恒定特性。下挑丁坝对水流流态影响较小，正挑或上挑的丁坝有利于促使泥沙在坝裆之间快速落淤，同时有利于集中水流，壅高水位。该文对丁坝的正确布置形式以及坝址周围河底、堤防的维护具有指导意义。
채용수치모의적방법연구불동포치방위각하정패군적근체류장분포정황。결과표명요정패적근장류동구유강삼유비항정특성。하도정패대수류류태영향교소，정도혹상도적정패유리우촉사니사재패당지간쾌속락어，동시유리우집중수류，옹고수위。해문대정패적정학포치형식이급패지주위하저、제방적유호구유지도의의。
This paper adopted the numerical simulation method to research the flow field distribution around spur dikes of different arrangements of azimuth. The results show that the flow around spur dike has three dimensional and unsteady char-acteristics. Picking downward the spur dike has little effect on the flow pattern, picking up the spur dike is propitious to the sediment rapid silting in dam crotch, also conducive to concentrated flow, banked-up water level. The result has guiding sig-nificance to the correct layout form of spur dike and the maintenance of river bottom and surrounding dam embankment.