The trend toward higher speed, higher power density liquid turbomachinery has inevitably increased the potential for fluid/structure interaction problems, and the severity of those problems. Fluid structure interaction phenomena can lead to increased wear and to structure failure. There are many factors affecting hydraulic and dynamic performance of pumping plants. These factors contribute to d...

We recently demonstrated that net fluid uptake occurs in the capillary system of the inner medulla. To define the site of fluid uptake, the concentration of protein was determined in plasma from descending vasa recta at the base and tip of the exposed papilla in Munich-Wister rats. The vasa recta plasma-to-arterial plasma protein concentration ratio (VR/P) was 1.43 +/- 0.09 at the base and 1.66...

The hydraulic fracturing propagation is strongly influenced by the existence of natural fractures. This is a very important factor in hydraulic fracturing operations in unconventional reservoirs. Various studies have been done to consider the effect of different parameters such as stress anisotropy, toughness, angle of approach and fluid properties on interaction mechanisms including crossing, ...

Background The goal of this work was to investigate the potential for subsurface migration of fluids from the stimulated oil and gas reservoir to an overlying drinking water aquifer. Researchers conducted two types of numerical simulation experiments: (1) exploration of hypothetical scenarios that could result in emergence of fluid pathways; and (2) evaluation of the range of conditions that ma...

The study of the performance dynamic hydraulic throttling under condition stable fluid is great significance. effect a step change in pressure differences on valve studied. This paper studies and static hydraulic-valve-outlet throttling-speed regulation system, builds more accurate mathematical model, considers linear factors flow hydraulic-valve throttling, analyzes influence step-load differe...