An efficient algorithm for wave scattering from two-dimensional lossy rough surfaces is proposed. It entails the use of a single magnetic field integral equation (SMFIE) in conjunction with a multilevel sparse-matrix canonical-grid (MSMCG) method. The Rao–Wilton–Glisson (RWG) triangular discretization is adopted to better model the rough surface than the pulse basis functions used in the well-e...

Most traditional strong magnetic inspection equipment has disadvantages such as big excitation devices, high weight, low detection precision, and inconvenient operation. This paper presents the design of a giant magneto-resistance (GMR) sensor array collection system. The remanence signal is collected to acquire two-dimensional magnetic flux leakage (MFL) data on the surface of wire ropes. Thro...

When a droplet hits surface fast enough, splashing can occur: smaller secondary droplets detach from the main during impact. While on smooth surfaces is by now well understood, roughness also affects at which impact velocity splashes. In this study, influence of investigated. By changing root mean square impacted surface, we show that only affected when large enough to disrupt spreading lamella...

to enhance the understanding of the impact of obstacle buildings on pollution transportationand dispersion in the atmospheric boundary layer, it is necessary to know the atmospheric flow characteristics over terrains. wind flow characteristics in a boundary layer over a step-shaped cliff topography model with rough and smooth surfaces were studied numerically using computational fluid dynamics ...