This laboratory study focused on the effect of a submerged vane-field flow pattern and bed morphology near inside entrance reach movable 90° lateral diversion. The system was modelled under live conditions for water discharge ratio ?0.2. Two experiments were run until equilibrium reached: with without installed close to diversion control transfer sediments into channel. associated 3D field meas...

At the multigate sluice structure on a fluvial river, undesired sediment deposition affects normal operation of reservoir in question. Physical and numerical models are hybridized to help explore flow sedimentation patterns. Field laboratory investigations show that is attributable formation large recirculation zones at low medium discharges. As potential countermeasure, an array guide vanes re...

Turbine guide vanes are among the most critical and complex turbine parts. As an entire engine comprises a significant number of vanes, simplification measurement process translates into overall time money savings. The key to is define areas for inspection, which enables relaxation strict inspection standards in all stable manufacturing. method described herein can help engineers achieve saving...

High-thermal performance PWR (pressurized water reactor) spacer grids require both low pressure loss and high critical heat flux (CHF) properties. Numerical investigations on the effect of angles and position of mixing vanes and to understand in more details the main physical phenomena (wall boiling, entrainment of bubbles in the wakes, recondensation) are required. In the field of fuel assembl...

In order to decrease the fluid dynamic forces of the U-bent tube with a circular section and avoid the occurrence of fluid-structure interaction problems, three-dimensional simulations of fluid flows around the tubes are carried out. In the case that the axis of the curved tube with the circular section is prevented from being normal to the direction of the flows approaching the tube, the forma...

In this paper, the problem of large pure bending deformations of membrane is considered. The membrane is a sector of torus with a closed cross-section. This membrane is called a curved tube for short. We consider the homogenous, incompressible, isotropic and hyperelastic material. The external load is a constant pressure and bending couples acting at the edges. The equilibrium equations reduce ...