Granata Francesco
Dipartimento di Ingegneria Civile e Meccanica, Università degli Studi di Cassino e del Lazio Meridionale, Via G. Di Biasio 43, 03043 Cassino, Province of Frosinone, Italy E-mail:
Water Sci Technol. 2016;73(9):2052-9. doi: 10.2166/wst.2016.051.
Dropshaft cascades are typical elements of sewer systems in steep urban catchment basins. The design of a dropshaft cascade, which is generally addressed as an optimization problem, also needs to consider the subsequent effects induced on the flow by the different elements of the cascade. Experimental research has been performed at the hydraulic engineering laboratory of the University of Cassino and Southern Lazio in order to investigate the basic flow patterns in a dropshaft cascade, with particular reference to energy dissipation and air entrainment. This research has shown that, regarding these aspects, a dropshaft cascade proved to be a more efficient solution of the single drop manhole with the same total drop height.
跌水井阶梯是陡峭城市集水区下水道系统的典型组成部分。跌水井阶梯的设计通常被视为一个优化问题，同时也需要考虑阶梯中不同部件对水流产生的后续影响。卡西诺大学和拉齐奥南部大学的水利工程实验室开展了实验研究，以探究跌水井阶梯中的基本水流模式，尤其关注能量消散和空气夹带情况。该研究表明，在这些方面，与具有相同总落差的单个跌水井相比，跌水井阶梯是一种更有效的解决方案。
