多孔有机材料力-热-电-流多场耦合模型与计算

项目名称： 多孔有机材料力-热-电-流多场耦合模型与计算

项目编号： No.91230114

项目类型： 重大研究计划

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 朱庆勇

作者单位： 中山大学

项目金额： 70万元

中文摘要： 多孔有机材料在生物医学材料中有重要的应用价值，如纤维支架、水凝胶等。本项目综合计算科学、材料科学等前沿学科的最新进展，以多孔有机材料中渗流问题为中心，以流固耦合理论为基础，同时考虑液-固界面的电化学现象，展开对多孔有机材料力-热-电-流多场耦合问题的研究，并探索机械能-热能-电能多种能量转化形式协同发挥作用的机制和途径。通过深入研究材料孔分布、固相纤维力学性质及表面性质等因素对多孔有机材料内液体流动的影响，基于应力场-温度场-电场-流场之间的相互作用关系，探索有效的数值计算方法，为工程设计提供理论和计算基础。本项目的研究成果很可能对提升我国在生物医学材料领域产品的科技含量和市场竞争力做出直接贡献。

中文关键词： 多孔有机材料；流固耦合；吸附热；双电层；多尺度建模

英文摘要： Porous organic materials have important applications in the field of biomedical materials, such as fibrous scaffolds, hydrogels, etc. This project will integrate the latest progress of the computational and material science. Based on the flow in porous organic materials and the fluid-solid interaction theory, taking into account the electrochemical phenomenon in the liquid-solid interface, we will investigate the coupled stress-heat-electricity-flow fields in porous organic materials. Meanwhile, the mechanisms and methods of synergistic effects of mechanical, thermal and electric energy will be explored in this project. Based on the interaction of stress -temperature-electricity-flow fields, investigating the influence of pore size distribution, the mechanical characters of fibers, the surface properties on the flow in porous organic materials, we will investigate the effective numerical methods and provide the theoretical and computational basis for engineering design. The results of this project is likely to make a direct contribution to promote the competitiveness of the biomedical material products in international markets.

英文关键词： porous organic materials；fluid-solid interaction；heat of adsorption；electric double layer；multiscale modeling