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基于双流体模型的三维溃坝洪水模拟
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作者 史志鹏 张根广 +2 位作者 王国平 何婷婷 刘美艳 《人民黄河》 CAS 北大核心 2015年第3期40-43,共4页
在溃坝洪水模拟中,泥沙因素的影响不可忽略。针对坝体溃决中的水沙流动,溃口采用DAMBRK模型中的概化梯形模型,通过欧拉模型即双流体模型成功模拟了溃坝洪水中的悬移质泥沙颗粒。对比来流分别为清水和含悬移质泥沙的水沙流、在下游有村... 在溃坝洪水模拟中,泥沙因素的影响不可忽略。针对坝体溃决中的水沙流动,溃口采用DAMBRK模型中的概化梯形模型,通过欧拉模型即双流体模型成功模拟了溃坝洪水中的悬移质泥沙颗粒。对比来流分别为清水和含悬移质泥沙的水沙流、在下游有村庄阻水和无阻水情况下坝面剪切力的大小,证明悬移质泥沙加快了坝体溃决,下游阻水建筑物对水沙流的破坏有抑制作用,最后给出了河道中泥沙的淤积分布情况。所有模拟结果均符合实际溃坝规律和环境。 展开更多
关键词 溃坝洪水模拟 溃口 欧拉模型 水沙流模拟 模型
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Water Yield and Sediment Yield Simulations for Teba Catchment in Spain Using SWRRB Model: Ⅱ. Simulation Results 被引量:4
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作者 ZENG ZHIYUAN and A. M. J. MEIJERINK Collage of Geography, Nanjing Normal University, Nanjing 210097 (China) International Institute for Aerospace Survey and Earth Sciences, P. O. Box 6, 7500A A Enschede (the Netherlands) 《Pedosphere》 SCIE CAS CSCD 2002年第1期49-58,共10页
Simulated results of water yield, sediment yield, surface runoff,subsurface runoff, peak flow, evapo- transipiration, etc., in theTeba catchment, Spain, using SWRRB (Simulator for Water Resources inRural Basins) model... Simulated results of water yield, sediment yield, surface runoff,subsurface runoff, peak flow, evapo- transipiration, etc., in theTeba catchment, Spain, using SWRRB (Simulator for Water Resources inRural Basins) model are presented and the related problems arediscussed. The results showed that water yield And sediment yieldcould be satisfactorily simulated using SWRRB model. The accuracy ofthe annual water Yield simulation in the Teba catchment was up to83.68/100, which implied that this method could be effectively Usedto predict the annual or inter-annual water yield and to realize thequantification of geographic elements And processes of a river basin. 展开更多
关键词 basin management sediment yield soil erosion vegetation index
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