使用计算流体动态分析在马头模型中的马喉半的治疗方法的比较
Michelle L Tucker1, David G Wilson1, Donald J Bergstrom2
1Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
Frontiers in veterinary science
|January 8, 2025
概括
计算流体动力学 (CFD) 建模准确预测了马类阻塞性呼吸道疾病中的空气流阻抗. 部分尾切除术显示阻抗最小,为复发性喉神经病变的外科治疗结果提供了洞察力.
科学领域:
- 兽医外科 兽医外科 兽医外科
- 生物机械工程 生物机械工程
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 阻塞性呼吸道疾病显著影响马的健康和表现.
- 对这些疾病的外科干预需要更深入地了解它们的生物力学影响.
- 计算流体动力学 (CFD) 为分析复杂解剖模型中的空气流动力学提供了一个有前途的工具.
研究的目的:
- 将CFD分析应用于模拟复发性喉神经病变 (RLN) 和四次手术的马头模型.
- 验证CFD预测空气流阻抗的能力,并提供对外科手术影响的见解.
- 为了比较喉腔整形,结合喉腔整形和角膜切除术,角膜切除术和部分膜切除术的疗效.
主要方法:
- 用马尸头进行气流测试和CT扫描以建模RLN和手术变异.
- 压力和空气流量数据在每个条件的喉和气管中收集.
- 进行了CFD模拟,以分析空气流动模式和计算阻抗.
主要成果:
- 部分膜切除术导致空气流阻抗最低.
- 差价合约模型证实了实验结果,特别是在最低阻抗过程中.
- 在RLN和结合喉膜整形/角膜切除模型中观察到负压度,这表明组织崩的力量.
结论:
- CFD是分析马匹呼吸道阻塞疾病和手术结果的宝贵工具.
- 部分膜切除术在减少空气流阻抗方面似乎最有效.
- CFD可以提供有关空气流变化和压力动态的详细见解,有助于手术规划.
相关概念视频
Typical Model Studies
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
Application of Integration: Problem Solving
The process of breathing involves the periodic intake and expulsion of air, known as the respiratory cycle, which typically lasts about five seconds. Modeling the volume of air inhaled into the lungs as a function of time provides insight into both the dynamics and efficiency of pulmonary ventilation. This volume is determined by integrating the airflow rate over time, which captures the cumulative effect of air entering the lungs.Sinusoidal Model of AirflowAirflow during respiration is not...


