Wire-coating flow is simulated, involving polymer melt coatings and tube-tooling process design. A finite element method is employed, based on a semi-implicit time-stepping Taylor-Galerkin/pressure-correction scheme. The exponential Phan-Thien/Tanner model is used in its multi-mode form to represent a high-density polyethelyne (HDPE) polymer. Both shear-thinning and elongation-softening propert...

Asynchronous machines are predominantly preferred in industrial sectors for its reliability. Power quality perturbations have a greater impact on industries; among the different power events, voltage fluctuations most common and that may cause adverse effect machine's operation since they longer enduring. The article discusses numerical technique evaluating asynchronous motors while taking into...

The current work presents an asynchronous/multiply time stepping integration scheme for the simulation of dynamic systems exhibiting multi-fracture and discrete features. It is a novel extension of existing methodologies to the discrete element simulation and several fundamental developments in both theoretical and implementation aspects are achieved that are essential for the success of the ap...

In simulations of fluid motion time accuracy has proven to be elusive. We seek highly accurate methods with strong enough stability properties deal the richness scales many flows. These must also easy implement within current complex, possibly legacy codes. Herein we develop, analyze and test new stepping addressing these two issues goal accelerating development needs applications. The are crea...

We study the time-dependent Navier–Stokes equations in context of stochastic finite element discretizations. Specifically, we assume that viscosity is a random field given form generalized polynomial chaos expansion, and use Galerkin method to extend methodology from Kay et al. (2010) [21] into this framework. For resulting problem, explore properties solutions, also compare results with Monte ...