in thermal cracking plants, it is desired to apply an optimal temperature profile along the reactor to minimize the operation cost. in this article a simulator is developed by the use of a mathematical model, which describes the static operation of a naphtha thermal cracking pilot plant. the model is used to predict the steady state profiles of the gas temperature and product yields. using a dy...

side weir is a flow control structure that used extensively in irrigation and drainage as well as sewer networks. throughout the present research, a study comprised of 162 experiments was done on sharp-crested semi-circular side weir. since the height in this side weir varies along its length, this feature enables it to more properly control flood than rectangular side weirs in various flood co...

In this paper, a Schwarz-Christoffel method for generating two-dimensional grids for a variety of complex internal and external flow configurations based on the numerical integration procedure of the Schwarz-Christoffel transformation has been developed by using Mathematica, which is a general purpose symbolic-numerical-graphical mathematics software. This method is highly accurate (fifth order...

This article presents the effect of heat and mass transfer on the blood flow through a tapered stenosed artery assuming blood as a Jeffrey fluid model. The equations governing the blood flow is modeled in cylindrical co-ordinates. Analytical solutions are constructed for the velocity, temperature, concentration and flux by solving flow governing non-linear coupled equations using Homotopy Pertu...

The relation between the shape of the force driving a turbulent flow and the upper bound on the dimensionless dissipation factor β is presented. We are interested in non-trivial (more than two wave numbers) forcing functions in a three dimensional domain periodic in all directions. A comparative analysis between results given by the optimization problem and the results of Direct Numerical Simul...

We describe the design and integration of adaptive techniques into a virtual university environment. It comprises a series of techniques that customizes the educational process to the learning curve of the user and pro-vides personalization features to the exchanging information flow. Its distinctive functionality is that it encompasses combined adaptation between educational material and well-...

Development of perform ance output depe nds on load input in complex ways. Two central aims of training and performance analysis are optimizing the training effort and predicting the training result. The Performance Potential Metamodel PerPot models the interaction between training input and perform ance output in adaptive physiologic processes by means of antagonistic dynam ics. This means tha...