Using single/multiple layers of highly conductive metallic wire mesh screen bonded to a plain heat transfer base surface, the two-phase heat transfer performance of a microjet impinging onto a porous coated copper surface was studied. Experiments were conducted at three different flow rates of water under atmospheric pressure. For comparison, experiments of jet impinging on a plain copper surfa...

The potential of the SAGE (Space Alternating Generalized Expectation Maximization) algorithm for navigation systems in order to distinguish the line-of-sight signal (LOSS) is to be considered. The SAGE algorithm is a low-complexity generalization of the EM (Expectation-Maximization) algorithm, which iteratively approximates the maximum likelihood estimator (MLE) and has been successfully applie...

Various types of impinging jet flows are analytically modeled using inviscid free Gaussian jet solutions superimposed with experimentally fitted boundary layer models. Improved (more robust) and simplified solutions to existing models are defined. Velocity profiles, surface pressure distributions, and streamline plots are calculated for circular, plane, and annular impinging jets. The models sh...

A moving metallic plate subject to heating and cooling boundary conditions is considered in this work. The plate is heated by an imposed heat  ux, and cooled down by an array of impinging jets through convection and radiation. The objective of the present work is determination of operating conditions for controlling the temperature distribution at the end of both heating and cooling sections. ...

We investigate the leading-edge separation, also called negligible boundary-layer thickness induced by an impinging shock on a sharp flat plate. The canonical wave/boundary-layer interaction configuration consisting of wedge and plate wall, placed in hypersonic free stream, is used for investigations. first construct theoretical model separated flow field (LESF) which predicts separation bubble...

In a strong electromagnetic field, gravitational waves are converted into of the same frequency, and vice versa. Here, we calculate scattering conversion cross sections for planar wave impinging upon Reissner-Nordstr\"om black hole in electrovacuum, using partial-wave expansion numerical methods. We show that, at long wavelengths, section matches that computed by Feynman-diagram techniques, sho...

The self-cleaning property is usually connected to superhydrophobic surfaces (SHSs) where the dust particles can be easily removed by the rolling motion of droplets. It seems that superhydrophobicity (its durability is questionable nowadays) is a necessity. However here, it is disclosed that self-cleaning can also be realized on an ordinary surface by droplet impinging. The effects of surface w...