Seminar: CFD, order reduction and cardiovascular simulations II


Feb. 9, 2017 from 03:00 PM - 05:00 PM


Gailbraith Building (GB 202)
35. St. George St
Toronto, ON M5S2E4


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Title: Reduced Order Methods for Fast Simulations of Patient Specific Cardiovascular Flows

Dr. Francesco Ballarin, International School for Advanced Studies (SISSA), Trieste Italy -- SISSA mathLab


Diseases of the cardiovascular system account for a large percentage of deaths worldwide every year. In many cases computational fluid dynamics studies can aid in a better understanding of the underlying phenomena. However, a successful day-to-day exploitation of computational tools in a clinical environment presents two main challenges: (i) reliable results require to integrate patient-specific data (such as CT/MRI images, flow rate measurements, etc.), and (ii) computational times should be as small as possible, without affecting the accuracy of the obtained results. In this talk we will propose a reduced order computational methodology to tackle these aspects. We will discuss POD-Galerkin reduction methods and shape morphing techniques, which are the two main ingredients of the proposed methodology. The application to patient-specific coronary artery bypass grafting procedures will then be presented. The computational efficiency of the proposed method is especially striking in sensitivity analysis studies, which would have required several weeks of CPU time otherwise. We will conclude with some representative examples related to queries of great clinical interest.