This study offers a novel empirical equation for those involved in ski-jump type energy dissipator, stilling basin, and plunge pool designs to determine the dissipation level due air resistance. The verified by conducting experimental, empirical, numerical regression analyses at prototype scale. Energy resistance can then be easily calculated discharges reaching up 10000 m3/s using equation.

The step-type energy dissipator is widely used to construct small- and medium-sized reservoirs with its high dissipation rate. In order further improve air entrainment characteristics dissipation, reduce the influence of cavitation, in this paper, we added a trapezoidal baffle block at convex corner traditional step form block-step combination dissipator. We hydraulic model experiments numerica...

The rough-strips energy dissipator (R-SED) is applied to the bottom of spillway bend and can play role dissipation flow stabilization. In this study, based on 18 sets orthogonal tests principle dimensional analysis, a multifactor influence model R-SED’s rate was proposed. A dimensionless factor k introduced, which reflect comprehensive characteristics geometric dimensions R-SEDs. considered nin...

Installing rough strip energy dissipators (R-SEDs) at the bottom of curved spillways can facilitate dissipation and flow stabilization. In this study, effects R-SEDs set a 60° bend in spillway were examined. This had large width-to-depth ratio ( B / H > 5 ). Based on physical model ...

In 2009–2022, to meet the requirement of resilient bridge pier structure (e.g., earthquake resistance, energy dissipation, isolation, resilience) for rapid repair after earthquakes and improve suitability precast segmental piers in medium- high-intensity areas, a assembled CFST with external replaceable dissipator was proposed. Based on ABAQUS finite element analysis software, model is establis...

Natural vegetation impacted by debris flows can act as an energy dissipator. This braking effect is similar to the one exerted baffle arrays. However, this effect, and its potential for hazard mitigation, has been studied only marginally. In work, we apply a depth-averaged model reproduce scaled laboratory experiments of flow-forest interaction.

Abstract This paper presents an innovative anti-seismic device for controlling the out-of-plane rocking motion of masonry walls with traditional tie-rods, called LInear COntrolled Rocking Device (LICORD). LICORD is a low-impact box connected to extremity tie-rod designed mitigate medium–high intensity earthquakes. Additionally, widens knowledge about dynamic behavior through interpretation resu...

A characterisation of quantum stochastic positive definite (PD) exponent is given in terms of the conditional positive definiteness (CPD) of their form-generator. The pseudo-Hilbert dilation of the stochastic form-generator and the pre-Hilbert dilation of the corresponding dissipator is found. The structure of quasi-Poisson stochastic generators giving rise to a quantum stochastic birth process...

self-centering pier (scp) has been viewed as a remarkable accomplishment which is able to sustain major lateral loading with reduced structure damage in seismic engineering. stiffness deterioration observed in experiment is vital for the seismic performance of self-centering concrete pier. in this contribution, the associated stiffness deterioration with respect to the structural damage is mode...