Water entry of a flat elastic plate at high horizontal speed

Pure and aerated water entry of a flat plate

A Computational Wear Model of the Oblique Impact of a Ball on a Flat Plate

Many wearing processes are a result of the oblique impacts. Knowing the effective impact parameters on the wear mechanism would be helpful to have the more reliable designs. The H-DD (Hertz-Di Maio Di Renzo) nonlinear model of impact followed by the time increment procedure is used to simulate the impact process of a ball on a flat plate. Restitution parameters are extracted and compared with t...

Stability Analysis for Wake Flow Behind a Flat Plate

Neutral stability limits for wake flow behind a flat plate is studied using spectral method. First, Orr-Sommerfeld equation was changed to matrix form, covering the whole domain of solution. Next, each term of matrix was expanded using Chebyshev expansion series, a series very much equivalent to the Fourier cosine series. A group of functions and conditions are applied to start and end points i...

Hybrid RANS/LES of plane jets impinging on a flat plate at small nozzle-plate distances

A k-ω based hybrid RANS/LES (Reynolds-averaged Navier–Stokes/large eddy simulation) model is tested for simulation of plane impinging jets at various nozzle-plate distances (H/B), where H is the distance and B is the slot’s width) and various Reynolds numbers (based on the slot’s width and the velocity in the symmetry plane). The studied combinations are H/B = 2 for Re = 10 000, H/B = 4 for Re ...

The Exergy Optimization of a Flat-Plate Solar Collector Using AL2O3-Water, CuO-Water and TiO2-Water Nanofluids by Genetic Algorithm

In this study, the exergy efficiency of a flat plate solar collector using Al2O3, TiO2, CuO nanoparticles and pure water as base fluid is studied. Solar radiation is selected between 200 to 600 W/m2. The method to determine optimum values of optimization variables has been developed by Genetic Algorithm Toolbox in MATLAB software. Results show by increasing solar radiation the optimized exergy ...