基于不可压缩数密度SPH的硅油填充和乳化仿真  

Incompressible Number Density Based SPH Model for Simulation of Silicone Oil Tamponade and Emulsification

作　　者：王佳敏 王笑琨 班晓娟[1,2,3,5] 徐衍睿 黄厚斌 WANG Jiamin;WANG Xiaokun;BAN Xiaojuan;XU Yanrui;HUANG Houbin(School of Intelligence Science and Technology,University of Science and Technology Beijing,Beijing 100083,China;Beijing Advanced Innovation Center for Materials Genome Engineering,University of Science and Technology Beijing,Beijing 100083,China;Key Laboratory of Intelligent Bionic Unmanned Systems,Ministry of Education,University of Science and Technology Beijing,Beijing 100083,China;Shunde Graduate School,University of Science and Technology Beijing,Foshan 528300,China;Institute for Materials Intelligent Technology,Liaoning Academy of Materials,Shenyang 110004,China;Hainan Hospital of PLA General Hospital,Sanya 572013,China)

机构地区：[1]北京科技大学智能科学与技术学院,北京100083 [2]北京科技大学北京材料基因工程高精尖创新中心,北京100083 [3]北京科技大学智能仿生无人系统教育部重点实验室,北京100083 [4]北京科技大学顺德创新学院,佛山528300 [5]辽宁材料实验室材料智能技术研究所,沈阳110004 [6]中国人民解放军总医院海南医院,三亚572013

出　　处：《北京邮电大学学报》2023年第6期20-26,共7页Journal of Beijing University of Posts and Telecommunications

基　　金：广东省自然科学基金项目(2021A1515012285);佛山市人民政府科技创新专项资金项目(BK21BF002)。

摘　　要：玻璃体切割联合硅油填充手术缺乏对硅油合适填充量和去除时间的量化研究,易发生各种眼部并发症而影响术后的视力恢复。对此,提出了一种基于不可压缩数密度的光滑粒子流体动力学(SPH)方法,以模拟眼球内部硅油和水两相流体的耦合交互。结合表面张力模型和局部平衡模型模拟了硅油的强表面张力和乳化扩散现象,并引入弹性模型以实现硅油和眼内液体与眼球组织的稳定耦合。实验结果表明,通过对硅油填充和乳化过程的可视化仿真,能够为医生临床诊断、手术规划和预后监测提供一种有效的计算机辅助手段,提高手术的成功率和改善预后。Due to the lack of quantitative research on the appropriate amount of silicone oil and the removal time,pars plana vitrectomy combined with silicone oil tamponade is prone to various ocular complications that affect postoperative visual recovery.To address this practical issue,a smooth particle hydrodynamics(SPH)method based on incompressible number density is proposed to simulate the coupled interaction of silicone oil and water inside the eyeball.The surface tension model and local equilibrium model are combined to simulate the strong surface tension and emulsification diffusion phenomenon of silicone oil,and the elastic model is introduced to achieve stable coupling between the silicone oil and intraocular fluid with the ocular tissue.The experimental results show that the visualization simulation of silicone oil tamponade and emulsification process can provide an effective computer-aided means for doctors'clinical diagnosis,surgical planning,and prognosis monitoring,in order to improve the success rate of surgery and postoperative outcomes.

关 键 词：计算机辅助医疗 物理仿真 多相流耦合 多相流扩散 流体-弹性体耦合 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]