Research Conducted at Ecole Polytechnique Has Provided New Information about Civil Engineering

摘要

2011 OCT 26 - (VerticalNews.com) -- "The roughness coefficient is a significantrnfactor in hydraulic design process, but carries vast uncertainty in practice. This paper reports thernresistance coefficients of corrugated PVC pipes under different flow regimes (i.e. pressurised,rngradually varied flow (GVF) and spatially varied flow (SVF) with increasing discharge),"rnscientists writing in the journal Proceedings of the Institution of Civil Engineers-WaterrnManagement report.