Sand storms: CFD analysis of Reynolds stress and collision stress of particles near sand bed

Microbeam Analysis of Yellow Sand Dust Particles

طراحی بهینه فیلترهای ماسه ای optimum design of sand filter

چکیده ندارد.

A Study of the Propagation of Stress Waves in Sand

The propagation of near-failure, soft-fronted stress waves in 5-foot-long, 1-inchdiameter, unconstrained rods of dry 20-30 Ottawa sand is studied. The input is created by a shock tube, modified to yield soft-fronted, long-duration, airpressure loadings. Primary data are displacement-time histories from seven stations along the rod, read by light-sensing gages designed for negligible inertia and...

Microwave Attenuation and Phase Shift in Sand and Dust Storms

Based on the forward scattering amplitude function for sand particle under the Rayleigh approximation, the calculation models of microwave attenuation and phase shift due to sand and dust particles is given in terms of lognormal size distribution. The model shows that attenuation and phase shift are found to be dependent on visibility, frequency and complex dielectric constant. Obtained results...

The anisotropy of Leighton Buzzard sand under general stress conditions

A hollow cylinder apparatus was used to investigate the inherent anisotropy and membrane penetration of Leighton Buzzard sand test-specimens. The degree of inherent anisotropy was found to be independent of the mean effective stress but dependent on the initial relative density of the test-specimen. In the vertical-tohorizontal directions, the degree of inherent anisotropy decreases with increa...