In this paper we investigate mixing and transport in correspondence of a meandering jet. The large-scale flow field is a kinematically assigned streamfunction. Two basic mixing mechanisms are considered, first separately and then combined together: deterministic chaotic advection, induced by a time dependence of the flow, and turbulent diffusion, described by means of a stochastic model for par...

The use of probability density function (PDF) methods for turbulent combustion simulations is very attractive because arbitrary finite-rate chemistry can be exactly taken into account. PDF methods are well developed for non-premixed turbulent combustion. However, many real flames involve a variety of mixing regimes (non-premixed, partially-premixed and premixed turbulent combustion), and the de...

Nonlinear mixing model of mixed pixels in remote sensing satellite images taking into account landscape is proposed. Most of linear mixing models of mixed pixels do not work so well because the mixed pixels consist of several ground cover targets in a nonlinear basis essentially. In particular, mixing model should be nonlinear because reflected photons from a ground cover target are scattered w...

Focusing on Large Eddy Simulation (LES) in the scalar field, this work has threefoldachievement:The development, validation and application of a new anisotropy subgrid scale (SGS)model that is designed to better describe the behavior of SGS scalar flux transportIn the frame of LES, a new developed anisotropy model is proposed and implemented.Unlike the isotropic SGS scalar f...

We present a model for leptonic mixing and the lepton masses based on anomalous U(1) charges and a non-Abelian flavor symmetry. The model yields bilarge leptonic mixing, an inverted neutrino mass spectrum and hierarchical charged lepton masses. The non-Abelian flavor symmetry enforces an approximately maximal atmospheric mixing angle and predicts the relation θ12 π4 − θ13 between the solar and ...

This study carried out to investigate the production of hydrogen using the organic fraction of municipal solid waste OFMSW, where the anaerobic digester was depended as a method for disposing and treating OFMSW and producing bio-hydrogen. Bio-hydrogen production had been studied under different parameters including pH, solid content T.S%, temperature and mixing ratios between the thick sludge t...

This study carried out to investigate the production of hydrogen using the organic fraction of municipal solid waste OFMSW, where the anaerobic digester was depended as a method for disposing and treating OFMSW and producing bio-hydrogen. Bio-hydrogen production had been studied under different parameters including pH, solid content T.S%, temperature and mixing ratios between the thick sludge t...

We prove comparison results for the Swendsen-Wang (SW) dynamics, the heat-bath (HB) dynamics for the Potts model and the single-bond (SB) dynamics for the randomcluster model on arbitrary graphs. In particular, we prove that rapid mixing of HB implies rapid mixing of SW on graphs with bounded maximum degree and that rapid mixing of SW and rapid mixing of SB are equivalent. Additionally, the spe...

Two types of mixing sub models are evaluated in connection with a joint scalar probability density function method for turbulent nonpremixed combustion Model calculations are made and compared to simulation results for homogeneously dis tributed methane air reaction zones mixing and reacting in decaying turbulence within a two dimensional enclosed domain The comparison is arranged to ensure tha...