We consider the multiphase shape optimization problem

Multiphase catalytic reactions are prominent in chemical engineering; however it is difficult to achieve efficient reactions. Computational fluid dynamics (CFD) software simulates fluid flow so interactions between phases may be analyzed and improved. This project included use of CFD to simulate an experiment on multiphase flow to compare results on flow regime and pressure drop. Results includ...

We provide a brief overview of recent advances and outstanding issues in simulations of interstellar turbulence, including isothermal models for interior structure of molecular clouds and larger-scale multiphase models designed to simulate the formation of molecular clouds. We show how self-organization in highly compressible magnetized turbulence in the multiphase ISM can be exploited in simpl...

We apply the Piecewise Constant Level Set Method (PCLSM) to interface problems, especially for elliptic inverse and multiphase motion problems. PCLSM allows using one level set function to represent multiple phases, and the interfaces are represented implicitly by the discontinuity of a piecewise constant level set function. The inverse problem is solved using a variational penalization method ...

Parietal and premotor cortices of the macaque monkey contain distinct populations of neurons which, in addition to their motor discharge, are also activated by visual stimulation. Among these visuomotor neurons, a population of grasping neurons located in the anterior intraparietal area (AIP) shows discharge modulation when the own hand is visible during object grasping. Given the dense connect...

According to current accounts, the perceived location of a target flash presented in the dark around the time of a saccade comes largely from an extraretinal signal that begins to change before, and continues to change during and following the saccade. Opposed to this view, this study offers a model suggesting that the perception of a single flash or two successive flashes in association with a...

The ubiquitous Flash platform enables programmers to build sophisticated web application “mash-ups” that combine Flash executables loaded from multiple trust domains with complex, asymmetric trust relationships. Flash provides APIs and run-time checks to help programmers declare and enforce trust relationships between different domains, but there is currently no formal security model for Flash....

The paper presents an advanced Fuzzy self-tuning PID controller theory and it implement its applications on Data I/O’s automated robotic programming systems. Considerable programming technology shift occurred in recent device programmer industry; programming density have been constantly fast growing from lowvolume to high-volume programming for all kinds of non-volatile flash memory devices suc...

The high temperature and high pressure supersonic jet is one of the key problems in the design of solid rocket motors. To reduce the jet temperature and noise, cooling water is typically injected into the exhaust plume. Numerical simulations for the gas-liquid multiphase flow field with mixture multiphase model were developed and a series of experiments were carried out. By introducing the ener...

A lattice Boltzmann method for axisymmetric multiphase flows is presented and validated. The method is capable of accurately modeling flows with variable density. We develop the classic Shan-Chen multiphase model [Phys. Rev. E 47, 1815 (1993)] for axisymmetric flows. The model can be used to efficiently simulate single and multiphase flows. The convergence to the axisymmetric Navier-Stokes equa...