Experimental investigation on trap stagnant effect and sand flux in aeolian sand transport

2007 ◽  
Vol 368 (6) ◽  
pp. 435-441 ◽  
Author(s):  
Zhengmeng Gu ◽  
Liejin Guo
2011 ◽  
Vol 1 (32) ◽  
pp. 109
Author(s):  
Keiko Udo ◽  
Junaidi Junaidi ◽  
Shin-ichi Aoki ◽  
Shota Mitsushio ◽  
Shigeru Kato ◽  
...  

This study conducted field observations in terms of the number of blown sand impacts and wind velocity at an open ocean beach in Japan, in order to investigate characteristics of the aeolian sand transport flux over a sand dune slope. Charnock constant of a roughness length equation calculated from wind velocity data had a larger value over the slope compared to over a flat. Furthermore, the aeolian flux over the slope tended to be larger than that over the flat. Characteristics of the Charnock constant and the aeolian flux over the flat and the slope were demonstrated from the field measurements.


2021 ◽  
Vol 249 ◽  
pp. 13004
Author(s):  
Sandesh Kamath ◽  
Eric Parteli

We develop a numerical tool for particle-based simulations of Aeolian sand transport. Our model combines a Discrete-Element-Method for the sand particles with an efficient hydrodynamic description of the average turbulent horizontal wind velocity field over the granular bed, which has been developed in previous work and accounts for the two-way coupling of the granular and fluid phases. However, here we implement our model within the open source library LAMMPS for granular massively parallel simulations and incorporate a new grid coarsening scheme for the wind model. We show that our model quantitatively reproduces observed values of the steady-state (saturated) sand flux under various flow conditions. Furthermore, we model different conditions of mobile sand availability and find a strong dependence of the sand flux on this availability.


Geomorphology ◽  
2008 ◽  
Vol 97 (3-4) ◽  
pp. 438-450 ◽  
Author(s):  
Liqiang Kang ◽  
Liejin Guo ◽  
Zhengmeng Gu ◽  
Dayou Liu

Sensors ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 820 ◽  
Author(s):  
Alessandro Pozzebon ◽  
Irene Cappelli ◽  
Alessandro Mecocci ◽  
Duccio Bertoni ◽  
Giovanni Sarti ◽  
...  

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