In order to study effect of complementary pulp distribution, computational fluid dynamic (CFD) was used to research flow characteristic of hydraulic headbox based on complementary pulp distribution. Mass flow rate out of mixing chamber and velocity distribution at slice of headbox were experimented. The results showed that because of simplified design, there were a little gradient of velocity a...

In this paper, the drawing process of multi-layer sheet metal through wedge shaped die has been analyzed using stream function and upper bound method. Typically a sandwich sheet contains three layers of metal, where the outer layers are of the same thickness and material and different from those of the inner layer. In this study, a new deformation model has been introduced in which inlet and ou...

Recent observations have shown that the periphery of the Greenland ice sheet (GrIS) is thinning rapidly and that this thinning is greatest around marine-terminating outlet glaciers. Several theories have been proposed which provide a link between climate and ice thinning. We present surface elevation change (dh/dt) data from NASA’s Program for Arctic Regional Climate Assessment (PARCA) laser al...

The discharging process is ubiquitous in the production of food and pharmaceuticals. Usually, devices have relatively simple structures. But unlike outflow liquids, due to transitions granular flow it considered a discontinuous there not yet complete theoretical framework that describes from an orifice. In this work, transition kinematic states near outlet examined experimentally. boundary disc...

9 10 Ozone is a major pollutant of indoor air. Many studies have demonstrated the adverse health effect of 11 ozone and the byproducts generated as a result of ozone-initiated reactive chemistry in an indoor 12 environment. This study developed a Computational Fluid Dynamics (CFD) model to predict the ozone 13 distribution in an aircraft cabin. The model was used to simulate the distribution of...

in this study, a laboratory scale continuous plug flow fluidized bed dryer was designed and constructed. a backward-curved centrifugal fan with a 4 kw electromotor was selected based on the maximum pressure drop in the minimum fluidization state and the ability to produce the velocity required for fluidization of the most granular agricultural materials. the fluidization chamber was a rectangul...

Effective treatment of arterial thoracic outlet syndrome includes early recognition and timely correction, with sufficient decompression of the thoracic outlet. A 56-year-old female suffered recrudescent right upper extremity ischemia due to thromboembolic event, raising suspicion for arterial thoracic outlet syndrome and prompting further imaging studies for confirmation. Decompression of the ...

Comparison of ulnar nerve conduction across the thoracic outlet in 30 normal individuals using caliper and steel tape measurements is reported. A difference of 11.3 m/s was noted between the two methods (58.9 +/- 4.20 m/s by caliper; 70.2 +/- 5.20 m/s by tape). Comparison of these values with previous studies and the use of the opposite limb as a control are discussed. This procedure is of clin...

A bubble to droplet transition non-symmetric interfacial area density formulation was developed for flash boiling nozzles CFD modeling. This is used in a two fluid Euler- Euler modeling with thermal phase change model. The regime based on the number of bubbles and values. first affects mainly flow close nozzle throat second parameter outlet. physical factors affecting calibration values these p...