Profile extrusion is a manufacturing process used for continuous plastics profiles with a fixed cross section. The key challenge in the development of profile extrusion dies is to design the transition region between outflow and inflow of the die in such a way, that the material velocity at the outflow is homogeneous. At the current state of the art, die design is experience based and time-cons...

Yuichi Ozawa ([email protected]) Minako Omae ([email protected]) Masato Fujii ([email protected]) Takashi Matsui ([email protected]) Masato Kato ([email protected]) Shinya Sagisaka ([email protected]) Kazuhiro Asada ([email protected]) Masato Karayama ([email protected]) Toshihiro Shirai ([email protected]) Kazumasa Yasuda (yasud...

This paper discusses a perception-based theory for a multi-variate stopping problem with a monotone rule by Yasuda et al. (1982). The problem is developed by using the perceptive analysis of the previous work(Kurano et al. (2004)). We will show a recursive equation which determines the perceptive value of its equilibrium point for the model.

This paper discusses a perception-based theory for a multi-variate stopping problem with a monotone rule by Yasuda et al. (1982). The problem is developed by using the perceptive analysis of the previous work(Kurano et al. (2004)). We will show a recursive equation which determines the perceptive value of its equilibrium point for the model.

In this paper melting of a carreau non-Newtonian PCM in the space between two concentric horizontal tubes, which is partially filled with porous material different shapes but same area, investigated numerically. A magnetic source located center geometry for process to occur presence ferro-hydrodynamic effects. Porous made Cu that covers cross-section inner tube. addition, and outer tubes satura...

This study presents the computational analysis of three dimensional Casson and Carreau nanofluid flow concerning the convective conditions. To do so, the flow equations are modified to nonlinear system of ODEs after using appropriate self-similarity functions. The solution for the modified system is evaluated by numerical techniques. The results show the impacts of involving variables on flow c...

The influence of transverse surface roughness on EHL characteristics has been investigated numerically using an extensive set of full EHL line contact simulations for shear-thinning lubricants under pure sliding condition. The shear-thinning behavior of lubricant is modeled using Carreau viscosity equation along with Doolittle-Tait equation for lubricant compressibility. The surface roughness i...

One of the main causes death is atherosclerosis so, in this work, two models stenosed arteries have been executed numerically to assess hemodynamic effects caused by flow disruptions. Using Computational Fluid Dynamics (CFD) provide information public, particularly surgeons, and assist them reducing risk stenosis. Star-CCM+ software was used perform CFD techniques such as steady, turbulent, non...

Altered flow and mass transfer patterns are thought to play an important role in the early onset of atherosclerosis. A disturbed wall shear distribution and the prevalence of hypoxic (low oxygen tension) are specifically believed to be atherogenic factors, which can function as a positive feedback on the development of atherosclerosis. In this work, blood flow and oxygen mass transport have bee...