Gas control in coalmine was the critical issue since gas accidents give rise to a lot of harm. This paper put forward the optimization control strategy based on the turbulent mass transfer mechanism on the basis of previous research. First of all, gas turbulent mass transfer mathematical model was established in heading laneway. Three aspects were describing in detail, gas diffusion law and qua...

A novel neuro-based method is introduced to solve the laminar boundary layer and the turbulent free jet equations. The proposed method is based on cellular neural networks, CNNs, which are recently applied widely to solve partial differential equations. The effectiveness of the method is illustrated through some examples.

A novel neuro-based method is introduced to solve the laminar boundary layer and the turbulent free jet equations. The proposed method is based on cellular neural networks, CNNs, which are recently applied widely to solve partial differential equations. The effectiveness of the method is illustrated through some examples.

The generation of magnetic field in an electrically conducting fluid generally involves the complicated nonlinear interaction flow turbulence, rotation and field. This dynamo process is great importance geophysics, planetary science astrophysics, since fields are known to play a key role dynamics these systems. paper gives introduction theory for dynamicist. It proceeds by laying groundwork, in...

We determine the nonlinear drift velocities of the mean magnetic field and nonlinear turbulent magnetic diffusion in a turbulent convection. We show that the nonlinear drift velocities are caused by the three kinds of the inhomogeneities, i.e., inhomogeneous turbulence; the nonuniform fluid density and the nonuniform turbulent heat flux. The inhomogeneous turbulence results in the well-known tu...

The effect of a zero-mean-flow turbulent ambient on the geometry turbulent/turbulent interface (TTI) an axisymmetric jet is investigated and compared with traditional turbulent/non-turbulent (TNTI). turbulence generated using random array. Orthogonal cross-sections subjected to different levels intensities length scales are captured planar laser-induced fluorescence. enhanced radial transport c...

The new service development of knowledge-intensive companies in emerging economies is changing from processes with only economic goals to processes that combine economic and social needs. In this approach, processes are socially constructed through society, aiming at achieving innovation success. The main research goal is to explore how companies organise the development process of new services...

This paper presents a numerical study of high wavenumber coherent structure evolution in boundary layer transition flow using recently-developed high order Combined compact difference schemes with non-uniform grids in the wall-normal direction for efficient simulation of such flows. The study focuses on a simulation of an Adverse-Pressure-Gradient (APG) boundary layer transition induced by broa...