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Arterial fluid mechanics computations with the stabilized space-time fluid-structure interaction techniques.

機譯:用穩(wěn)定的時空流固耦合技術(shù)進行動脈流體力學計算。

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The stabilized space-time fluid-structure interaction (SSTFSI) techniques developed by the Team for Advanced Flow Simulation and Modeling (T☆AFSM) are applied to the field of arterial fluid mechanics through the FSI modeling of a cerebral artery with a small, saccular aneurysm. All arterial structures are modeled with membrane elements, which are geometrically nonlinear. FSI computations of cardio-vascular systems presently interest the scientific community as such types of analysis provide a non-invasive means of analyzing a patient's condition and risk for aneurysm rupture, a potentially life-threatening condition. Test computations for varying arterial wall thickness and blood pressure are presented for this cerebral aneurysm, with the arterial geometries of the computations closely approximating patient-specific image-based data. Results show the T☆AFSM's ability to handle complex and realistic FSI simulations while demonstrating the capability and utility of FSI simulations in the field of cardiovascular fluid mechanics.
機譯:由先進流動模擬和建模團隊(T☆ AFSM)開發(fā)的穩(wěn)定的時空流固耦合技術(shù)(SSTFSI)通過對小動脈囊的腦動脈進行FSI建模而應用于動脈流體力學領(lǐng)域動脈瘤。所有動脈結(jié)構(gòu)均使用膜單元建模,該膜單元在幾何上是非線性的。目前,心血管系統(tǒng)的FSI計算引起了科學界的興趣,因為這種類型的分析提供了一種非侵入性的方法來分析患者的病情和動脈瘤破裂的風險,這可能威脅生命。提出了針對這種腦動脈瘤的不同動脈壁厚度和血壓的測試計算方法,其計算的動脈幾何形狀非常接近患者特定的基于圖像的數(shù)據(jù)。結(jié)果表明,T☆ AFSM具有處理復雜且逼真的FSI模擬的能力,同時展示了FSI模擬在心血管流體力學領(lǐng)域的功能和實用性。

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