The cavitation flow of the cartridge pilot-operated relief valve’s main valve port was numerically simulated and studied using Computational Fluid Dynamics (CFD) in our research, structure modified to decrease noise. findings indicate that occurs mostly downstream is linked wall. Cavitation generation influenced by jet at port. closer high-speed inner wall, more readily occurs. Conversel...

Observation of flow distribution pattern in the hemodialyzers is significant as it is a valuable indication of the performance of these modules. Therefore, in this study, a feasible non-destructive Magnetic Resonance Imaging (MRI) technique is proposed to characterize the flow distribution in the blood compartment of hemodialyzers using Gd-DTPA MRI contrast agent. The distribution of flow is qu...

A computational study was performed to explore the aerodynamic performance of a streamline-traced, externalcompression inlet designed for Mach 1.664 at off-design conditions of freestream Mach number, angle-of-attack, and angle-of-sideslip. Serious degradation of the inlet performance occurred for negative angles-of-attack and angles-of-sideslip greater than 3 degrees. At low subsonic speeds, t...

background: tissue expanders are devices which are used to create enough skin to form suitable flap in restoration of great skin deficiencies which are not modified initially. the current study aimed at investigating the patients’ satisfaction and the complications such as rupture, hematoma, wound infection, seroma, leakage, chronic pain, and expander expose of internal (implanted under the ski...

Hydrodynamic effect is one of the key phenomena in journal bearing lubrication. Many researches have been carried out on supporting force bearing, motion suspension shaft and lubrication effect. This paper studies hydrodynamic from another point view, that is, pumping caused by rotation eccentric with fixed axis. The clearance between rotor stator divided into two sections inlet port outlet por...

Despite efficient carbon monitoring system and the commercialization of battery technology for intra-port transportation, port management are found not adopting these environmental yet costly equipments. Port authority who regulates environmental policies lacks leverage to impose tangible reduction on emission through concession. This model integrates sustainability into port equipment expansio...

PURPOSE The purpose of this study is to explore the influence of segmentation of the upstream and downstream parent artery and hemodynamic boundary conditions (BCs) on the evaluated hemodynamic factors for the computational fluid dynamics (CFD) analysis of intracranial aneurysms. MATERIALS AND METHODS Three dimensional patient-specific aneurysm models were analyzed by applying various combina...

Various factors can be responsible for the flow of incompressible fluid under gravity. Torricelli's theorem gives relationship between efflux velocity an incompressible, gravity-driven from orifice and height liquid above it. The concept original derivation Torricelli’s is limited in application because certain inherent assumptions method derivation. An alternate use Bernoulli’s principle. Howe...