摘要
四面六边透水框架在水面上方抛放后,受重力影响透水框架到达水面时产生初始沉速,入水后受到水下重力与水流绕流阻力的作用,在向水下沉降的同时,还产生顺水流方向的落距。文章通过对四面六边透水框架在水流运动中的受力分析,建立了不同搭接方式和不同抛投方式的四面六边透水框架在不同抛投高度下的沉速和落距公式,并利用水槽试验资料对公式中的参数进行了率定。
After being released above the water surface,permeable frames of tetrahedron with six sides gener-ate an initial settling velocity when they reach the water surface under the gravitational influence. Because of the in-fluence of gravity and water flow,permeable frames may have a horizontal movement while sinking down. Based onforce analysis of permeable frames of tetrahedron with six sides in flowing water,the equation for the settling veloci-ty and throwing distance was developed under different throw heights. Through flume experiments,the throwing dis-tances of permeable frames of tetrahedron with six sides with different velocities and water depths were determined,and the corresponding formula was proposed. Sink test data was used for calibrating the formula parameters.
出处
《水道港口》
2016年第5期508-513,共6页
Journal of Waterway and Harbor
关键词
四面六边透水框架体
沉速
落距
permeable frames of tetrahedron with six sides
settling velocity
throwing distance
