Introduction This seminar of the ARIA project consists of three talks that describe three test suites; talks will be followed by a panel discussion. The seminar will be organized in the afternoon of Thursday 23 May 2024.
By Enrique Delgado Avila The purpose of this secondment was to start having a first contact with ESTECO and to try to think of possible future collaborations with them within the framework of the ARIA project. Also, since SISSA is also located in Trieste, taking advantage of continuing the work…
By Maria Strazzullo (Polito) Addressing convection-dominated flows is a crucial task, with multiple applications in diverse fields, both in industry and science. However, under under-resolved regimes, numerical oscillations may arise, spoiling the accuracy of the numerical simulations.
By Samuele Rubino (Seville University) The aim of this secondment was to numerically test in the framework of POD (Proper Orthogonal Descomposition)-ROMs (Reduced Order Models) an efficient time-splitting approximation of the Navier-Stokes equations with open boundary conditions already performed for Finite Volume FOMs (Full Order Models)
By Anna Ivagnes (SISSA) Finite Element (FE) simulations are often characterized by spurious oscillations and poor accuracy when dealing with convection-dominated flows and coarse mesh resolutions. When these phenomena manifest, numerical stabilization techniques turn out to be useful to alleviate the spurious oscillations and improve the results of Full Order…
Volkswagen sent a secondment to Inria with the purpose of the secondment is to tackle challenges of residual minimization-based model order reduction in car aerodynamics. To that end, a Reduced Order Model (ROM) based on residual minimization (ResMin-ROM) was applied to a backward facing step test case.
SISSA had a secondment to Virginia Tech in November 2023. The purpose is to investigate machine learning methods and optimization algorithms to find theoptimal filtering and relaxation parameters in the Evolve-Filter-Relax (EFR) regularization technique. This technique is applied to a benchmark in convection-dominated CFD simulations, in particular, the flow past…
S. Rubino from University of Seville had a month secondment at Valorem in July 2023 with the purpose: Development, numerical analysis and implementation of reduced order models for the simulationof complex flows with dominant convection. Development, numerical analysis and implementation of efficient time-splitting POD-ROMs for theNavier-Stokes equations with open boundary…
ESTECO sent two researchers o Inria in July 2023 to investigate how to combine Uncertainties Quantification (UQ) techniques with Reduced Order Model (ROM) and study the use of ROM within an MDO framework for industrial applications.
C.Núñez Fernández from Virtualmech had a month of secondment in July 2023 at Inria to work onTime-Splitting method for Navier-Stokes equations for Finite Element Method in order to do a Full Order Model (FOM) and a Reduced Order Model (ROM).