Seminar - Adeline de Villardi de Montlaur- Development of numerical methods for incompressible flows and critical comparison of computational fluid dynamics (CFD) vs. particle imagine velocimetry (PIV)
Wednesday 31st August 2011, 1.00 pm - 2.00 pm
Lecture Room 3, School of Civil Engineering
Associate Professor Adeline de Villardi de Montlaur
Escola Politècnica Superior de Castelldefels, Spain
The first part of my talk will deal with the work developed during my PhD thesis, that is, the development of high-order discontinuous Galerkin methods for incompressible flows. It is applied to the solution of the incompressible Navier-Stokes equations. The velocity approximation space is decomposed in every element into a solenoidal part and an irrotational part. This allows splitting the weak form in two uncoupled problems, which results in an important reduction of the total number of degrees of freedom for both velocity and pressure. High-order implicit time integration methods have then been proposed to solve transient incompressible problems, allowing obtaining unconditionally stable schemes with high orders of accuracy both in space and in time.
The second part of my talk will describe the work I have been doing during the two and a half months spent here in the University of Sydney. The objective of the stay was to compare experimental and CFD results of a flow over triangular cliffs. The experimental data come from PIV measurements in the boundary layer wind tunnel of the School of Civil Engineering. Ansys v13, with CFX solver has been used to get the CFD results. Various configurations of the cliff have been studied in order to accurately reproduce the experimental conditions.
Adeline is an Aeronautical Engineer from ENSICA, located in Toulouse, France. She holds a Master of Science in Mechanical and Aerospace engineering from the State University of New York at Buffalo. She received her PhD in Aerospace Science and Technology from Universitat Politècnica de Catalunya (Barcelona, Spain) in 2009. She has been working there since 2004 and currently, she is a lecturer at the Castelldefels School of Telecommunication and Aerospace Engineering. Her research interests include numerical methods and computational fluids dynamics. Her PhD thesis consisted in developing high-order numerical methods for incompressible flows, and she has also been involved in industrial projects involving CFD fluid simulations.