| 题名 | 基于GPU并行计算的泥石流运动堆积可视化仿真研究 |
| 作者 | 叶健 |
| 学位类别 | 博士 |
| 答辩日期 | 2012-05-23 |
| 授予单位 | 中国科学院研究生院 |
| 授予地点 | 北京 |
| 导师 | 陈锦雄 ; 陶和平 |
| 关键词 | 泥石流堆积 GPU 并行计算 粘弹性模型 汇流 |
| 其他题名 | Study on visual simulation of accumulation of debris flow based on GPU |
| 学位专业 | 自然地理学 |
| 中文摘要 | 本论文针对当前泥石流运动堆积模型建模与可视化的需要，提出了将GPU的高并行性和可编程性的优势应用于泥石流运动堆积过程可视化仿真的方法。论文实现了基于LOD优化算法构建泥石流山地地形的方法，并通过实验验证了该方法对于满足泥石流自然场景实时性和交互性的有效性；结合前人的泥石流运动堆积模型实验数据、实验方法，在仿真环境下构建了仿真实验材料并验证了泥石流的沟口堆积过程。实验结果表明，在仿真环境中，该仿真模型能够符合与泥石流运动堆积模型实验相同或相近的线性和非线性关系。另外，在虚拟环境下还实现了泥石流的沟内堆积过程和坝后堆积过程，并在虚拟环境中设计并实现了泥石流的汇流堆积过程 |
| 英文摘要 | This paper presents a new method that the high parallelism and programmability of GPU is applied to 3D Visual Simulation of accumulation of debris flow due to the demand for the modeling and visualization of mathematical model of accumulation of debris flow，and realized the method that constructs mountainous terrain based on LOD to save system resources and meet the real-time and interactive features of accumulation of debris flow, and show the effectiveness of this method by simulation and optimization experiments. What’s more, the process of ditch pass accumulation of debris flow is simulated and validated by constructing experimental materials in simulative environment based on prior’s experimental data and experimental methods. The experimental results show that the simulation model of debris flow can still be linear to or closely linear to the model test of accumulation of debris flow. Besides, the process of accumulation of debris flow behind the debris dam is simulated, the different process of accumulation after converging is also designed and realized in simulative environment. |
| 语种 | 中文 |
| 公开日期 | 2013-01-14 |
| 内容类型 | 学位论文 |
| 源URL | [http://192.168.143.20:8080/handle/131551/4807]  |
| 专题 | 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
| 推荐引用方式 GB/T 7714 | 叶健. 基于GPU并行计算的泥石流运动堆积可视化仿真研究[D]. 北京. 中国科学院研究生院. 2012. |
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