The investigation of the turbulence statistics for single-phase turbulent flow around pipe bends have mainly been experimental. Considering cost-effectiveness numerical computational fluid dynamics (CFD) compared to experimental measurement, this work aims study accuracies different CFD models, and establish their functionality limitations. This paper investigates capabilities models spatial di...

the mechanism of flow and sediment transport in channel bend is much complex. because of secondary current, the sediment moves away from outer bank toward inner bank and therefore outer bank of the bend is one of best positions for lateral diversion. in this paper, the mechanism of sediment transport was simulated with ssiim software in the u shape channel with lateral intake. in order to verif...

This paper presents an experimental investigation of an aerosol problem by adopting two methods. One approach utilizes scanning electron microscope to study the realistic aerosol deposition status in a typical duct bend. Through scanning electron microscope images and on-site observation, the aerosols tend to deposit and accumulate more on the outer bend wall and bend outlet wall. The other app...

29 ABSTRACT Bend intensive single mode fibers are attractive for fiber to the home (FTTH) applications because they can lower the installation cost and improve the system performance. For in home wiring applications, bend radii in the range of 5 mm are very common [7] and bending losses must be kept minimum. Bending losses of less than 0.1 db/turn will ensure robust network performance under pr...

This paper investigates the self-cleansing performance of an airlift pump with a U-bend. For this purpose, experimental setup is used to assess effect air flow on pump's ability lift water and remove particles under different submergence ratios particle concentrations. In addition, simple yet accurate fluid mechanical model interpret experiments individual predict critical velocity required for...

BACKGROUND Repetitive tensile stresses from valgus torque can induce elbow injury in adolescent baseball players. Insufficient hip range of motion (ROM) can change throwing mechanics, reducing the transfer of energy from the lower to the upper extremities. Thus, hip ROM limitations may force the upper extremities to bear the burden of a strong throw. Improper pitching mechanics caused by insuff...

Determination of the characteristics pH sensor using U-shaped optical fiber was carried out with various varieties, namely length without a coat, indentation diameter, and number imperfections. Optical as light transmission medium is used to detect level solution. The output read on OPM in form power. best characteristic obtained imperfections, imperfections 3 value range 32.0 µW, sensitivity 3...

We evaluated the morphological changes to the ulnar nerve of both elbows in the cubital tunnel by sonography in a total of 237 children, of whom 117 were aged between six and seven years, 66 between eight and nine years, and 54 between ten and 11 years. We first scanned longitudinally in the extended elbow and then transversely at the medial epicondyle with the elbow extended to 0 degrees . We ...