[1]袁 礼,刘 伟,翟 健.坡面颗粒流开源软件TITAN2D的改进及应用[J].山地学报,2016,(03):346-355.[doi:10.16089/j.cnki.1008-2786.000138]
 YUAN Li,LIU Wei,ZHAI Jian.Improvement and Application of Open-source Code TITAN2D for Numerical Simulation of Dry Granular Avalanche Flows over Natural Terrain[J].Mountain Research,2016,(03):346-355.[doi:10.16089/j.cnki.1008-2786.000138]
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坡面颗粒流开源软件TITAN2D的改进及应用()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2016年03期
页码:
346-355
栏目:
山地灾害
出版日期:
2016-06-01

文章信息/Info

Title:
Improvement and Application of Open-source Code TITAN2D for Numerical Simulation of Dry Granular Avalanche Flows over Natural Terrain
文章编号:
1008-2786-(2016)3-346-10
作者:
袁 礼刘 伟翟 健
中国科学院数学与系统科学研究院计算数学所 科学与工程计算国家重点实验室, 北京 100190
Author(s):
YUAN LiLIU WeiZHAI Jian
LSEC and Institute of Computational Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190
关键词:
颗粒崩塌流 Savage-Hutter模型 停止准则 开源软件 TITAN2D
分类号:
P642
DOI:
10.16089/j.cnki.1008-2786.000138
文献标志码:
A
摘要:
滑坡或崩塌碎屑流的泛滥范围和冲击力可以用颗粒薄层流模型进行数值模拟研究。薄层流模型是将流体力学的质量守恒和动量守恒方程在深度方向平均后所得的近似方程组,因其在分析上的简化而广受重视。近年来基于颗粒薄层流模型(以Savage-Hutter模型为代表)的模拟研究取得大量进展,但相应的能够模拟自然地形上碎屑流的开源软件尚不多见。2007年美国纽约州立布法罗大学公开了一款结合颗粒薄层流模型和地理信息系统(GIS)的开源软件TITAN2D。在此,将TITAN2D中原来的HLL通量修改为耗散更小的HLLC通量,并增加了颗粒材料的停止准则。通过简单的颗粒堆积物和溃坝问题,验证了软件改进的有效性。进一步,利用中科院科学数据服务平台的DEM数据对重庆武隆鸡尾山滑坡、舟曲泥石流用干颗粒流进行数值模拟。通过调节底面摩擦角可以使计算结果大概反映实际灾害的泛滥范围,表明该软件值得进一步改进与发展。

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备注/Memo

备注/Memo:
收稿日期(Received date):2014-08-29; 修回日期(Accepted):2014-10-23。
基金项目(Foundation item):国家973计划资助项目(2010CB731505), 国家自然科学基金资助项目(11261160486, 11321061)。[National Basic Research Program(973-program)(2010CB731505), National Natural Science Foundation of China(11261160486, 11321061).]
作者简介(Biography):袁礼(1963-),男,重庆人,博士,研究员。主要从事计算流体力学研究工作。[Yuan Li(1963-), male, born in Chongqing, PhD, Professor, mainly engaged in research of computational fluid dynamics. ] Tel: 010-82541933, E-mail: lyuan@lsec.cc.ac.cn
更新日期/Last Update: 2016-05-30