In the study there was presented simulation of the volume counting of the water coming from surface flow which appears on highland forest roads. The basis were actual measures of surface flow from roads done in the Silesian Beskid in 2003-2004 period, and assumption of conditions homogeneity in 100 ha area for which the calculation was made. For different index of road net density (from 10 to 30 m∙ha-1), different precipitations (1,1; 2,1; 5,2; 9,8 mm) and established 3-hour lasting rainfall there was shown the simulated water amount and its pro-portion to precipitation (P) on total area. Results, among others, are as follow: for road net density 10 m∙ha-1 and rainfall 1,1 mm - 376 liters (0,03% P), for road net density 30 m∙ha-1 and rainfall 9,8 mm - 58 077 liters (0,6% P). There was also calculated surface flow volume on based on the data measured in snow melt period (3 hours long period) and the results are as follow: for road net density 10 m∙ha-1 - 75 588 liters, and for road net density 30 m∙ha-1 - 226 765 liters of water. In part of discussion we compared these results with standard water con-sumption by statistic person. ...
During flow of water from upstream to downstream in a controlled manner, the flow of water at high velocity and pressure, which occurs as a result of hydraulic jump is broken by energy dissipation structures in relief or accumulation structures. Otherwise, the flow of water with high velocity and pressure in the downstream section, where the stream passes from a flood regime to a river regime, will damage its own structure and surrounding environment. For this reason, it is necessary to design energy-dissipating structures at appropriate locations with appropriate sections so that large pressure and friction forces do not cause abrasion and erosion in flow chamber.In this study, flow characteristics such as pressure distribution, outlet flow, velocity distribution etc. of the water flowing from a dam infill located in Adrasan town of Antalya province was determined. Then, dam spillway was modelled in the computer environment with the actual measurements and analyzed according to Computational Fluid Dynamics method (CFD) using ANSYS-Fluent software. Finally, the actual measurements were compared with the simulation results. Additionally, measured data were compared with the downstream flow characteristic by defining to dam and spillway projecting software of General Directorate of State Hydraulic Works (pro-SHW).As a result, the ...
