Stilling basins with sudden expansions are one of the energy dissipation structures. In hydraulic jump, pressure fluctuations cause significant damages in stilling by cavity formation, erosion, and vibration. Roughness can also lead to changes behavior stream lines vortices. Despite large number works on topic, role roughness spatial jumps is not yet fully understood. Present research aimed stu...

As a result of designing an energy absorber in the zone conjugation water outlet structures low-pressure and mediumpressure reservoirs, stilling basin is not only under influence vertical hydrodynamic pressure with variable value but also disappearance stagnation can be affected by stress arising from force horizontal absorber. The hydraulic jump pool junction one simplest absorbers. To increas...

[1] Near-surface wind speeds (u) measured by terrestrial anemometers show declines (a ‘stilling’) at a range of midlatitude sites, but two gridded u datasets (a NCEP/NCAR reanalysis output and a surface-pressure-based u model) have not reproduced the stilling observed at Australian stations. We developed Australia-wide 0.01 resolution daily u grids by interpolating measurements from an expanded...