An investigation of hot gas ingestion driven by the disc pumping effect in a chute seal was conducted at Oxford Rotor Facility. Measurements mean pressure, unsteady pressure and concentration have been logged analysed under different operating conditions. The sensitivity cavity coefficient, frequency spectra pressures sealing effectiveness to changing conditions purge flow, annulus rotor speed ...

To the Editor: We read with interest the study by Vetter et al, “Intraocular Pressure During Corneal Flap Preparation: Comparison Among Four Femtosecond Lasers in Porcine Eyes,” which appeared in the June 2011 issue of Journal of Refractive Surgery.1 Vetter et al measured the changes in intraocular pressure (IOP) during lamellar fl ap creation using four different femtosecond lasers. We also an...

The formation and development of an attached cavity at the tail underwater moving vehicle involves a complex multiphase flow, which determines load characteristics motion stability vehicle. In this study, experimental method was used to explore process vehicle, pressure sensor installed model establish relationship between evolution attachment transient pressure. study found that pulling breaki...

Abstract The paper presents a numerical analysis of pressuremeter test in unsaturated cohesive soils. In practice, is commonly expanded up to 10–15% cavity strains. At these strains, limit pressure not usually reached, and its value estimated by extrapolation. Accordingly, authors suggest using at 10% strain ( P 10 ) for the interpretation rather than pressure. this strain, it also assured that...

The process of water reabsorption from the peritoneal cavity into the surrounding tissue substantially decreases the net ultrafiltration in patients on peritoneal dialysis. The goal of this study was to propose a mathematical model based on data from clinical studies and animal experiments to describe the changes in absorption rate, interstitial hydrostatic pressure, and tissue hydration caused...

The relative contributions to gastric emptying from common cavity antroduodenal pressure difference ("pressure pump") vs. propagating high-pressure waves in the distal antrum ("peristaltic pump") were analyzed in humans by high-resolution manometry concurrently with time-resolved three-dimensional magnetic resonance imaging during intraduodenal nutrient infusion at 2 kcal/min. Gastric volume, s...

The objective of this paper is to evaluate the predictive capability of three turbulence models for the simulation of unsteady cavitating flows around a 2D Clark-y hydrofoil. Three turbulence models were standard k-ε model, hybrid model of density correction model (DCM) and filter-based model (FBM) and an improved partially-averaged Navier-Stokes model (PANS) based on k-ε model. Using the above...

The dynamics of detonation evolution in a condensed-phase explosive, initiated by the shock-induced collapse of an embedded, ellipsoidal, gas-filled cavity, is examined computationally. Attention is focused on the details of the evolutionary process following the collapse. The reaction rate is assumed to be pressure-dependent, switching on when the pressure exceeds an ignition threshold. The st...