Abstract: The present paper introduces a control oriented model based on air and burned gas flows for automotive engines with variable valves. Moreover, a predictive controller is proposed by using the obtained model. For the engines with variable valves, the intake valve lift enables the quick torque response; on the other hand, the large valves’ overlap may cause a misfiring of combustion bec...

In the published experimental results, it has been observed that when high-speed steam spurt into subcooled waterflow, total pressure along axial direction at trailing edge of plume shows a pressure-lift. To reveal mechanism behind this phenomenon, study utilizes particle model to investigate profile jet condensation in water flow narrow pipe. A numerical based on Eulerian–Eulerian multiphase d...

In this project fluid flow over various airplane wings was simulated using lattice gas cellular automata (LGCA)[1]. The aim of this simulation was to study how the drag and lift forces on a wing vary for various wing shapes, wing pitches and wind speed. The results of this study are presented, along with key details of the LGCA implementation that was used to construct the wind tunnel and inter...

A high order staggered-grid Chebyshev multidomain method is used to compute the Euler gas-dynamics equations on unstructured quadrilateral meshes. New results show that the method reduces to the first order upwind scheme when zeroth order polynomial approximations are used, and that by a simple reconstruction procedure the standard Chebyshev collocation method can be recovered. Local time-stepp...

A new method for selecting controlled variables (c) as linear combination of measurements (y) is proposed based on the idea of self-optimizing control. The objective is to find controlled variables, such that a constant setpoint policy leads to near optimal operation in the presence of low frequency disturbances (d). We propose to combine as many measurements as there are unconstrained degrees ...

For a century, researchers have used the standard lift coefficient C(L) to evaluate the lift, L, generated by fixed wings over an area S against dynamic pressure, ½ρv(2), where v is the effective velocity of the wing. Because the lift coefficient was developed initially for fixed wings in steady flow, its application to other lifting systems requires either simplifying assumptions or complex ad...

The oil production process is the of extracting from reservoir using wells that have been made. In there are three stages, namely primary recovery, secondary recovery and tertiary recovery. At stage two methods, natural energy (natural flow) artificial lift methods (artificial lift). There basic principles lift, gas pumps. principle to inject into bottom well thereby reducing density pressure g...

Multiagent Systems (MAS) are a computational paradigm in which several semi-autonomous agents interact with each other, either to solve a problem or achieve a number of individual or collective goals. Moreover, the production planning is a key activity in performance of the industry, so it is evident the need for applications that provide support in the development of these activities, to achie...