El Departamento de Ingeniería Mecánica, de la Universidad de Santiago de Chile, tiene el agrado de invitarlos a participar de Charla Titulada: “Novel developments in Reduced Order Models through the Variational Multiscale Method: readily implementation of fluid flow problems in the FEniCS computational framework
Abstract: Reduced Order Models (ROM) in computational mechanics aim at solving problems approximating the solution in spaces of very low dimension. ROMs can be written as a variational form equivalent to the classical Galerkin method in the Finite Element Method, for which the construction of the approximation basis of the ROM is the only difference between the FEM approximation and the ROM approximation. This also means that one encounters in the ROM formulation the same instability problems as in FEM approximations. The Variational Multiscale framework has been typically used to deal with this issue and stabilize the discrete equations. Although the VMS have been also adopted for turbulence modeling, weak imposition of boundary conditions or interelement fluxes, essentially, the role of the subscales is related to measuring the error of the numerical approximation. In this conference, Camilo Bayona, Ph.D. demonstrates the application of the VMS concept to stabilize ROMS in the context of non-linear flow problems. The ideas to be presented are nonetheless open to any other physics. Moreover, the direct and easy coding of any transient VMS-ROM problem in the FEniCS software library is demonstrated. FEniCS is an open code project for the distributed computing of Finite Element approximations of Partial Differential Equations. It is developed over Python, C++, by an increasing international community, which is open to help and enroll you!
Camilo Bayona holds a PhD in engineering with studies in the areas of computational mechanics and supercomputing. He has formulated and executed several scientific and technological projects in engineering in different European and Latin American institutions. He currently serves as Scientific Director of the Center for Advanced Engineering, Research and Development - CIAID in Colombia. He is an advisor to the Colombian government in complex systems modeling, numerical methods, distributed computing for large data volumes and in the management of research and development projects. His main lines of research are finite element stabilization, distributed parallel computing and simulation of complex applications in engineering and science. He is a professor at the Pontifical Xavierian University and Cartagena University at the Colombian scope, as well as a consultant in computational engineering topics for the solution of industrial problems.
• La Charla se enmarca en el contexto del proyecto FONDECYT regular 1210156 “Efficient stabilized finite element formulations for thermally coupled non-Newtonian turbulent flows using adaptive meshes and reduced-order modeling techniques”.
• LA CHARLA SE REALIZARÁ EN ESPAÑOL.
Para participar, regístrate en este formulario.
Cupos limitados para 60 inscritos. ( Al completar el numero automáticamente se cierra el formulario)
Orientaciones generales para tener en cuenta al ingresar al auditorio del Dpto. de Ingeniería Mecánica.
1. Uso obligatorio de mascarilla cubriendo nariz y boca
2. Realizar control de temperatura
3. Higienizar tus manos
4. Regístrate usando el Código QR de la sala
5.No comas ni bebas en la sala
6.Comunica a
trazabilidad.usach@usach.cl si tiene PCR positivo.
7.Estar 5 minutos antes para el acceso.
Fecha: Miércoles 6 de Julio.
Hora: 11:30 hrs.
Lugar: Auditorio del Departamento de Ingeniería Mecánica.
