Study on uncertainty and criterion in model optimization of coupled THM simulation
文献类型：会议论文
| 作者 | Zhang, Chengyuan; Liu, Xiaoyan; Liu, Quansheng |
| 出版日期 | 2008 |
| 会议日期 | AUG 27-29, 2007 |
| 会议地点 | Urumqi, PEOPLES R CHINA |
| 关键词 | uncertainty optimization DECOVALEX coupled THM simulation |
| DOI | 10.4028/www.scientific.net/AMR.33-37.1135 |
| 页码 | 1135-1140 |
| 英文摘要 | Coupled THM simulator on FEBEX case is a highly nonlinear system including several nonlinear sub-models. To better understand the coupled THM processes and their influence on the prediction of disposal system behavior, this paper presents an uncertainty study and model optimization on coupled THM simulation under DECOVALEX-THMC framework. It focus on the effect of complexity on model uncertainty which is based on the hypothesis stating that as a model becomes more complex in terms of increased number of processes involved and parameters, the error between simulations and measurements decreases and the overall model sensitivity increases. An uncertainty function is defined which minimizes both error and sensitivity. The result of comparative study basing on different complexity level models of FEBEX case study verifies this hypothesis and indicates that method presented can address uncertainty of numerical model and give us a criterion to choose most suitable model in a relative manner. |
| 会议录 | ADVANCES IN FRACTURE AND MATERIALS BEHAVIOR, PTS 1 AND 2
 |
| 会议录出版者 | TRANS TECH PUBLICATIONS LTD |
| 会议录出版地 | STAFA-ZURICH |
| 语种 | 英语 |
| WOS研究方向 | Materials Science |
| WOS记录号 | WOS:000256659600181 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4471]  |
| 专题 | 岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Zhang, Chengyuan,Liu, Xiaoyan,Liu, Quansheng. Study on uncertainty and criterion in model optimization of coupled THM simulation[C]. 见:. Urumqi, PEOPLES R CHINA. AUG 27-29, 2007. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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