Study of Dispersion Coefficient Channel

Tracer dispersion study: Diffusion coefficient and modeling results

This work compared the outcome of tracer dispersion experiments with the results of a far field numerical modeling. The studies were carried out on two different locations from Rio de Janeiro coast: the first near the city of Maricá, approximately 30 km east from the Guanabara Bay, and the second inside the bay, at São Gonçalo. For the tracer experiment, it was used a Rhodamine, Amidorhodamine ...

GNMM and accurate longitudinal dispersion coefficient prediction

Longitudinal dispersion coefficient is a key variable for the description of the longitudinal transport in a river. In recent years, Artificial Neural Networks (ANNs) have become popular and useful tools for environmental modellers as they are perceived to overcome some of the difficulties associated with traditional statistical approaches. In these applications, however, little attention was g...

Spatial distribution of urban green spaces using entropy model and coefficient of dispersion

In the present era, the importance and role of green space in the life and development of cities are to the extent that it is mentioned as one of the indicators of sustainable development. In sustainable urban development, proportional distribution of green space according to the balanced distribution of the population is one of the principles of establishing geographical justice. The purpose o...

Theorectical Study of Pulse Compressing Using Nonlinear Birefringent Fiber with Third-order Dispersion Coefficient

We present the analytical study of using polarizer at the end of nonlinear birefringent fiber to achieve the signal pulse reshape. In this paper, stemming from the coupled nonlinear Schrödinger equation, we use the variational approach (VA) to study the factors which influence the signal pulse’s transmission. The results from the technique indicate that the transmission of pulse relies on the i...

experimental investigation of power consumption, mass transfer coefficient and flow regime in gas-liquid dispersion systems