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We present a fluid–reduced solid interaction approach suitable for modelling blood flow in a beating left heart. The method combines the efficiency of fluid dynamics models with features from full fluid–solid interaction approaches, uniquely integrating motion data to predict cardiac haemodynamics over a full heart cycle. The approach is presented for a patient-specific left heart model coupled to a lumped circulatory system, showing physiological flow behaviour and pressure–volume relations.

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Blood Flow in the Beating Heart: Coupling Fluid Dynamics to Reduced Wall and Circulation Models for Data-Driven Cardiac FSI

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Marc Hirschvogel,
  • Mia Bonini,
  • Maximilian Balmus,
  • David Nordsletten

摘要

We present a fluid–reduced solid interaction approach suitable for modelling blood flow in a beating left heart. The method combines the efficiency of fluid dynamics models with features from full fluid–solid interaction approaches, uniquely integrating motion data to predict cardiac haemodynamics over a full heart cycle. The approach is presented for a patient-specific left heart model coupled to a lumped circulatory system, showing physiological flow behaviour and pressure–volume relations.