In the current paper, numerical simulations of combustion turbulent CH4-H2 are presented employing standard k-epsilon and RNG for turbulence closure. The Fr-ED concept is carried out to account chemistry/ interaction. hydrogen content varied in fuel stream from 0% 100%. solutions validated by comparison with corresponding experimental data Combustion Laboratory University Milan. flow directed r...

We consider a resonantly perturbed system of coupled nonlinear oscillators with small dissipation and outer periodic perturbation. We show that for the large time t∼ɛ(-2) one component of the system is described for the most part by the inhomogeneous Mathieu equation while the other component represents pulsation of large amplitude. A Hamiltonian system is obtained which describes for the most ...

The adsorption of a bottle-brush polymer end-grafted with one chain end of its backbone to a flat substrate surface is studied by Monte Carlo simulation of a coarse-grained model, that previously has been characterized in the bulk, assuming a dilute solution under good solvent conditions. Applying the bond fluctuation model on the simple cubic lattice, we vary the backbone chain length N(b) fro...

The present study basically conducted a qualitative-oriented research to identify the articulating and listening problems of eleven AE vowels for Taiwanese eighth graders. It aimed to examine the relationship between production and perception of English vowels. Gender differences were probed under this sound pronunciation and discrimination framework. A vowel articulating test followed by a vow...