Integration of UAV Photogrammetry and SPH Modelling of Fluids to Study Runoff on Real Terrains

被引：24

作者：

Barreiro, Anxo ^{[1
]}

Dominguez, Jose M. ^{[1
]}

Crespo, Alejandro J. C. ^{[1
]}

Gonzalez-Jorge, Higinio ^{[2
]}

Roca, David ^{[2
]}

Gomez-Gesteira, Moncho ^{[1
]}

机构：

[1] Univ Vigo, EPHYSLAB Environm Phys Lab, Orense, Spain

[2] Univ Vigo, Dept Nat Resources & Environm Engn, Appl Geotechnol Grp, Vigo 36310, Spain

来源：

PLOS ONE | 2014年 / 9卷 / 11期

关键词：

SMOOTHED PARTICLE HYDRODYNAMICS; FREE-SURFACE FLOWS; BREAKWATER; SPHYSICS; SOLVER;

D O I：

10.1371/journal.pone.0111031

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Roads can experience runoff problems due to the intense rain discharge associated to severe storms. Two advanced tools are combined to analyse the interaction of complex water flows with real terrains. UAV (Unmanned Aerial Vehicle) photogrammetry is employed to obtain accurate topographic information on small areas, typically on the order of a few hectares. The Smoothed Particle Hydrodynamics (SPH) technique is applied by means of the DualSPHysics model to compute the trajectory of the water flow during extreme rain events. The use of engineering solutions to palliate flood events is also analysed. The study case simulates how the collected water can flow into a close road and how precautionary measures can be effective to drain water under extreme conditions. The amount of water arriving at the road is calculated under different protection scenarios and the efficiency of a ditch is observed to decrease when sedimentation reduces its depth.

引用

页数：11

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