نتایج جستجو برای: sand particle

تعداد نتایج: 201427  

2017
Raleigh L Martin Jasper F Kok

Wind-driven sand transport generates atmospheric dust, forms dunes, and sculpts landscapes. However, it remains unclear how the flux of particles in aeolian saltation-the wind-driven transport of sand in hopping trajectories-scales with wind speed, largely because models do not agree on how particle speeds and trajectories change with wind shear velocity. We present comprehensive measurements, ...

Journal: :Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)) 2015

2009
Punyapriya Mishra S. K. Acharya

Experiments were carried out to study the effects of impingement angle and particle velocity on the solid particle erosion behavior of Bagasse Fiber Reinforced Polymer Composites (BFRPCs). The erosive wear is evaluated at different impingement angles from 30° to 90° at four different velocities of 48, 70, 82 and 109 m/s. The erodent used is silica sand with the size range 150 – 250 m of irregul...

Journal: :E3S web of conferences 2021

In this paper, the effects of different wind-sand attack angle, wind speed, action time, concrete strength, sand particle size, and content on surface erosion structures are experimentally studied. Wind rate strength loss defined as indexes to measure degree concrete. According similarity theory, actual situation is deduced based test, time corresponding sand, simulation test in case obtained. ...

Journal: :Journal of the Society of Materials Science, Japan 1985

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