A Finite-volume, Cartesian grid method for acoustic problems with complex geometry
Rick Vedder

Site of the project:
University of Michigan
Department of Aerospace Engineering
Francois-Xavier Bagnoud Building
1320 Beal Avenue
Ann Arbor, Michigan 48109-2140

start of the project: September 2005

In November 2005 the Interim Thesis has been appeared and a presentation has been given.

The Master project has been finished in June 2006 by the completion of the Masters Thesis and a final presentation has been given. For working address etc. we refer to our alumnipage.

Summary of the master project:
Computational AeroAcoustics (CAA) combines the disciplines aeroacoustics and computational fluid dynamics and deals with sound generation and propagation in association with the dynamics of the flow. Its interaction with the geometry of the domain (surroundings) also plays an important role. Current CAA-tools are still limited in many practical problems due to different length and time scales between prevailing fluid dynamics and acoustic nonlinearity in physical mechanisms and complex geometries. To carry out effective CAA, it is essential that the numerical solutions contain low dissipation and dispersion error. Recently, optimized numerical schemes have been proposed with a finite difference approach.

Two important objectives of present research are: recasting these schemes into finite volume form and defining and using a cut-cell method for complex geometry.

The cut-cell method uses a cartesian background grid for the domain and there is a special treatment for every boundary cell that is cut off by solid bodies. In general these cells are all irregularly shaped.

The optimized finite volume schemes combined with a useful cut-cell method can offer CAA improved capabilities.

Contact information: Kees Vuik

Back to the home page or the Master students page of Kees Vuik