The complexity of wavy film flows results in a high computational cost for a direct numerical simulation. Simplified models are therefore attractive alternatives for engineering design calculations. An incremental approach for the identification of transport models in wavy film flows is presented here. The proposed strategy decomposes the identification problem into a series of sequential, comp...

A parallel implementation of the preconditioned conjugate residual (PCR) method is described. The method is used to solve the discretized generalised Stokes problem derived from the simulation of complex 2D axisymetrical hot metal forming process. We numerically show that the use of a simple diagonal block (BDS) preconditioner results in a high level of parallelism. Nevertheless in 2D, the iter...

The goal of the paper is to present a novel approach to Application Specific Logic Controllers realisations, which is suitable especially for small, embedded system designs. A discrete model of a Logic Controller is derived directly from Control Interpreted Petri Net or related Sequential Function Chart (SFC), and synthesised as a dedicated microsystem. The unified, formal intermediate model is...

The interaction of a jet from a 3000-N-class thruster positioned on the side of a small rocket, with the rareŽ ed atmosphere at 100 and 80 km, is studied numerically. The direct simulation Monte Carlo method was applied to model the three-dimensional jet-atmosphere interaction. Chemical reactions between freestream and plume species were included in the simulations. A two-stage numerical strate...