Extensive Research and Development (R&D) within the tidal energy industry is pushing this sector towards commercial viability, with full scale prototypes starting to meet the challenges of the marine environment. This paper combines velocity data collected from Ramsey Sound (Pembrokeshire, Wales), with Computational Fluid Dynamics (CFD) to assess the impact of non-rectilinear flows on turbine r...

Periphyton and macrophytes alter water velocity in streams, influencing movement of solutes and providing microhabitat for other organisms. How assemblages with different growth form and architecture influence water velocity attenuation across mm to dm scales is not well described. A thermistor microprobe was used to measure water velocity through 4 morphologically distinct stream periphyton as...

Laboratory measurements of droplet size, velocity, and accelerations generated by mechanically wind-forced water breaking waves are reported. The wind free stream velocity is up to 12 m/s, leading wave slopes from 0.15 0.35 at a fetch 23 m. ratio phase speed ranges 5.9 11.1, depending on the mechanical frequency. size distribution in all configurations can be represented two power laws, N(d) ? ...

The focus of this work is on developing a nonlinear grey model for the laminar flow regime carrier fluid across flat plate collector. trust region reflective algorithm was used to solve problem and handle sparse matrix. stream function, dimensionless velocity, gradients velocity components, temperature, absorber temperature were estimated collector operated with without circular chimney. Simila...

Hydrodynamic equations for ideal incompressible fluid are written in terms of generalized stream function. Two-dimensional version of these equations is transformed to the form of one dynamic equation for the stream function. This equation contains arbitrary function which is determined by inflow conditions given on the boundary. To determine unique solution, velocity and vorticity (but not onl...

This paper has examined the analytical solution of steady fully developed natural convective flow of a viscous incompressible and electrically conducting fluid between vertical channel by taking the Hall current and induced magnetic field into account. We have obtained the non-dimensional simultaneous ordinary differential equations using the suitable non-dimensional variables and parameters in...