Non-intrusive data-driven ROM framework for hemodynamics problems  

作　　者：M.Girfoglio L.Scandurra F.Ballarin G.Infantino F.Nicolo A.Montalto G.Rozza R.Scrofani M.Comisso F.Musumeci 

机构地区：[1]Area di Matematica,mathLab,SISSA,Scuola Internazionale Superiore di Studi Avanzati,Trieste,Italy [2]Modelli Matematici e Simulazioni Numeriche,Collegio di Ingegneria Matematica,Politecnico di Torino,Torino,Italy [3]Unit Operativa Complessa di Cardiochirurgia e Chirurgia dei Trapianti,Azienda Ospedaliera San Camillo,Rome,Italy [4]Dipartimento di Cardiochirurgia,Azienda Ospedaliera FBF Luigi Sacco,Milan,Italy

出　　处：《Acta Mechanica Sinica》2021年第7期1183-1191,I0003,共10页力学学报（英文版）

基　　金：supported by the European Research Council Executive Agency by the Consolidator Grant project AROMA-CFD“Advanced Reduced Order Methods with Applications in Computational Fluid Dynamics”--GA 681447,H2020-ERC CoG 2015 AROMA-CFD and INdAM-GNCS 2020 project“Tecniche Numeriche Avanzate per Applicazioni Industriali”。

摘　　要：Reduced order modeling(ROM)techniques are numerical methods that approximate the solution of parametric partial differential equation(PED)by properly combining the high-fidelity solutions of the problem obtained for several configurations,i.e.for several properly chosen values of the physical/geometrical parameters characterizing the problem.By starting from a database of high-fidelity solutions related to a certain values of the parameters,we apply the proper orthogonal decomposition with interpolation(PODI)and then reconstruct the variables of interest for new values of the parameters,i.e.different values from the ones included in the database.Furthermore,we present a preliminary web application through which one can run the ROM with a very user-friendly approach,without the need of having expertise in the numerical analysis and scientific computing field.The case study we have chosen to test the efficiency of our algorithm is represented by the aortic blood flow pattern in presence of a left ventricular(LVAD)assist device when varying the pump flow rate.

关 键 词：Non intrusive model reduction Data-driven techniques HEMODYNAMICS LVAD Web computing 

分 类 号：R331.11[医药卫生—人体生理学]