术前血流动力学边界条件和材料模型的不确定性：脑梭状动脉瘤破裂1例

IF 0.5 4区工程技术 Q4 MECHANICS

Journal of Applied Mechanics and Technical Physics Pub Date : 2025-04-18 DOI:10.1134/S0021894424060105

Yu.O. Kuyanova, A.K. Khe, K.S. Ovsyannikov, A.V. Dubovoi, A.P. Chupakhin, D.V. Parshin

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引用次数: 0

摘要

本文对脑梭状动脉瘤术前血流动力学数值模拟结果进行了数值模拟，研究了不同个体边界条件和虚幻边界条件对结果的影响。研究发现，考虑动脉瘤组织的个体力学性能会影响动脉瘤状态的预测结果，但不会影响破裂区域的预测结果，这可以通过CFD方法在具有虚拟边界条件的刚性壁面假设下进行检测，并将壁面最大剪应力作为确定破裂区域的标准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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UNCERTAINTY OF BOUNDARY CONDITIONS AND MATERIAL MODEL FOR PRE-OPERATIVE HEMODYNAMICS: CLINICAL CASE OF A RUPTURED CEREBRAL FUSIFORM ANEURYSM

The influence of various individual and phantom boundary conditions on the results pre-operative numerical simulations of hemodynamics of a fusiform aneurysm of cerebral vessels is numerically simulated. It is found that allowance for individual mechanical properties of the aneurysm tissue affects the results of predicting the aneurysm status, but does not affect predicting the rupture zone, which can be detected by using the CFD approach under the assumption of rigid walls with phantom boundary conditions and with the condition of the maximum shear stresses on the wall as a criterion of rupture zone determination.

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来源期刊

Journal of Applied Mechanics and Technical Physics 物理-力学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.