Comparison of water routing computing techniques

Comprehensive computational analysis was made for modelling the integrated hydrologic-hydraulics characteristics of varied unsteady flow in hydraulic structures as part of water engineering practices and river basin management. several numerical skills,linear,non-linear,implicit,explicit methods were developed and tested with existing river analysis software of danish hydraulic institute (dhi) and hydrologic engineering centre (hec) series models. coupled hydrological and hydraulics analysis of storming run-off flows in broad waterway boundaries including flood plains of compound sections was performed. application of models was encouraging,the complex water conveyance systems that transported lateral flows in natural rivers were modelled satisfactorily. storming flow events in real rivers were coded and compared through different numeral techniques such as method of characteristics,mac-cormack,diffusive numeral model and preissmann fully implicit model. predicted results were close to observed values verified and confirmed the hand-written codes and programs in matlab environment. enhanced modelling skills were justified by (hec) series and mike series computer software. merits of this research were seen based on: numerical accuracy,consistency,stability and convergence results to observed targets. © iran university of science and technology 2016.