使用功能模型接口的儿科心血管多尺度建模
Ellen E Garven1, Ethan Kung2, Randy M Stevens3,4
1School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Rm. 718, Philadelphia, PA, 19104, USA. eg533@drexel.edu.
Cardiovascular engineering and technology
|January 6, 2025
概括
功能模拟接口 (FMI) 在复杂的多尺度模型中有效地将心血管子系统结合起来. 这种方法增强了计算流体动力学和一次性参数模型的集成,提高了模拟准确性.
科学领域:
- 心血管生理学心血管生理学
- 计算建模计算建模
- 多层次系统是多层次系统.
背景情况:
- 心血管模型越来越复杂,需要高效的子系统集成.
- 多尺度建模捕获了更多的生理细节,但需要强大的合方法.
研究的目的:
- 为了证明功能模拟接口 (FMI) 在合心血管子系统的有效性.
- 将FMI应用于集成计算流体动力学 (CFD) 和一次性参数模型 (LPM) 的多尺度心血管模型.
主要方法:
- 结合了CFD模型与使用FMI标准包装的LPM.
- 在ANSYS CFX和Python中使用了FMI共模拟架构.
- 根据临床数据和先前的模型,验证了FMI合在单静脉并行循环模型中.
主要成果:
- 实现了有效的子系统间通信,在每个时间步骤中交换压力和流量数据.
- 成功重建了与临床测量一致的生理压力和流量.
- 可重复生成的结果与先前发布的患者特定计算模型相比.
结论:
- 与ANSYS CFX的FMI集成提供了一种有效的方法来接口心血管多尺度模型.
- 国际货币基金组织 (FMI) 促进了对工具集成的模块化方法,有利于复杂系统建模.
- 这种方法促进了对心血管动态的先进模拟.
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