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- W2374625741 abstract "FLUNENT software was used to simulate and analyze the sand flow field near the embankment of Lan-Xin Railway in gobi region. The results demonstrate that relatively low-speed areas occur at the slope foot of the windward side,near the embankment surface and at the slope foot of the leeward side,while relatively high-speed areas occur at the shoulder of windward side in the sand flow field around the embankment.Wind erosion occurs at the relatively high-speed area while,sand accretion happens at the relatively low-speed area and the sand accretion at the slope foot of the windward side is more serious than that on the leeward side.The numerical analyses of sand flow surrounding embankment with anti-sand walls of different height illustrate that the maximum wind regions shift from the shoulder of the windward side to the above of anti-sand walls.Meanwhile,the wind erosion at the shoulder of windward side is weakened.Most sand accretes in front of the anti-sand walls and sand crossing the walls falls down under the impact of the relatively low speed vortex areas between the anti-sand walls and embankment.The reasonable height of the antisand wall should meet the following requirements: firstly,most sand in the air flow should be blocked by the anti-sand wall.Secondly,no relatively high-speed area occurs at the shoulder of the windward side so as to avoid the strong wind erosion there.Thirdly,the boundary line of the high and low speed areas gets across the embankment surface steadily." @default.
- W2374625741 created "2016-06-24" @default.
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- W2374625741 date "2011-01-01" @default.
- W2374625741 modified "2023-09-23" @default.
- W2374625741 title "Numerical Analysis on the Features of Sand Flow Movement around the Embankment of Lan-Xin Railway in Gobi Region" @default.
- W2374625741 hasPublicationYear "2011" @default.
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