CAJ | 학술논문

为了研究边墩周围水流流速分布规律,利用声学多普勒流速仪(ADV),对矩形断面明渠中半圆形边墩周围三维流速进行测量,并对所得到的数据进行了分析研究.结果表明:在10°～120°内距离圆心1.23r的区域水流流速受到柱体挤压作用最为明显,存下游170°射线的区域内,水流流速呈非线性波动,整体波动幅度不大.
위료연구변돈주위수류류속분포규률,이용성학다보륵류속의(ADV),대구형단면명거중반원형변돈주위삼유류속진행측량,병대소득도적수거진행료분석연구.결과표명:재10°～120°내거리원심1.23r적구역수류류속수도주체제압작용최위명현,존하유170°사선적구역내,수류류속정비선성파동,정체파동폭도불대.
In order to study the flow velocity distribution, the Acoustic Doppler Velocimeter (ADV) was used to measure the three-dimensional velocity around the semicircle cylinder pier in the rectangular channel. The analysis of the achieved data showed that the most possible flushing oeurred in the section of 1.23r and angle of 10°～120°.In the downstream section where the angle was 170°,the velocity of the flow was nonlinear fluctuation, and the integral amplitude was small.