AACS Seminars
and "Jonge Honden" Discussion - Seminar Schedule 2008-2009

[Last modified February 2008]

Welcome. Seminars are held at different places generally on Thursdays at 15:30pm.


October 9th    PhD-TW-Colloqium

October 16th   TBA
               Citadel T100

October 23rd   TW-Colloqium

October 30th   TBA
               Citadel T300

November 6th   Wouter Quak
               (Mechanics of Forming Processes Group, University of Twente)
               Meshless Methods and Forming Processes
               Citadel T300

November 13th  PhD-TW-Colloqium

November 20th  Antonella Longo
               (Istituto Nazionale di Geofisica e Vulcanologia, Italy)
               GALES a research code for the fluid-dynamics of multicomponent mixtures.
               Citadel T300

November 27th  TW-Colloqium

December 4th   Anthony Thornton (40+5min.) / Domokos Sarmany(20+5)
               (Mathematics, University of Manchester / University of Twente)
               A Simple Model of Particle Size Segregation and its Applications to Geophysical Problems (Anthony)/
               High-order accurate DG method for the indefinite time-harmonic Maxwell equations (Domokos)
               Citadel T100

December 11th  PhD-TW-Colloqium

December 18th  TBA
               Citadel T300

January 8th    B.W.I. Peeters (Bob)
               (University of Twente)
               TBA
               Citadel T300

January 12th    Thomas Weinhart
               (Virginia Tech, United States)
               Aposteriori error estimates of DG methods for hyperbolic conservation laws.
               H327, 13;30-14:30

January 14th    Masoumeh Mohammadi
               (Iran University of Science and Tchnology, Teheran)
               Model reduction by POD-Galerkin procedure
               Citadel T300, 15:45-16:15

January 15th   PhD-TW-Colloqium

January 22nd   R.M.J. van Damme (Ruud)
               (University of Twente)
               TBA
               Citadel T300

January 29th   TW-Colloqium

February 12th  PhD-TW-Colloqium

February 19th  M.A. Bochev (Mike)
               (University of Twente)
               TBA
               Citadel T300

February 26th  TW-Colloqium

March 5th      E.W.C. van Groesen (Brenny)
               (University of Twente)
               Tsunami inversion
               Citadel T100

March 12th     PhD-TW-Colloqium: S. Rhebergen (Sander)

March 19th     W. Kristina (Wenny)
               (University of Twente)
               TBA
               Citadel T100

March 26th     TW-Colloqium

April 2nd      Dr. Antonios Zagaris
               (CWI, Amsterdam)
               Phytoplankton-nutrient dynamics in oligotrophic oceanic envirnoments.
               Citadel T300 (16:00hrs)

April 9th      PhD-TW-Colloqium: B.W.I. Peeters (Bob)

April 23rd     TW-Colloqium

May 7th        F.A. Klaver (Frank)
               (University of Twente and MARIN)
               Coupling Shallow Water and Potential Flow Models
               Citadel T300

May 14th       PhD-TW-Colloqium

May 28th       TW-Colloqium

June 4th       V.R. Ambati (VJ)
               (University of Twente)
               Space-time Discontinuous Galerkin Methods for Nonlinear Free surface waves
               Citadel H327

June 11th      PhD-TW-Colloqium: D. L. Penha (David)

June 18th      S. Visser (Sid)
               (University of Twente)
               TBA
               Citadel T300

July 23rd      Tim Op 't Root (Tim)
               (University of Twente)
               TBA

In case changes occur, visitors from outside might be wise to consult
this WWW page immediately before starting their journey to Twente.
Contact Onno Bokhove for further details,
o.bokhove@math.utwente.nl, Tel: 053-489-3412.

Seminar list of 2006-2007: SEMINARS MPCM0607
Seminar list of 2005-2006: SEMINARS MPCM0506
Seminar list of 2004-2005: SEMINARS MPCM0405
Seminar list of 2003-2004: SEMINARS MPCM0304
Seminar list of 2002-2003: SEMINARS MPCM0203
Seminar list of the 1st and 2nd trimester 2001-2002: SEMINARS MPCM0102
Seminar list of the 1st and 2nd trimester 2000-2001: SEMINARS MPCM0001
Seminar list of spring 2000: SEMINARS MPCM


Abstracts

GALES a research code for the fluid-dynamics of multicomponent mixtures.

A. Longo, Istituto Nazionale di Geofisica e Vulcanologia Pisa, Italy
November 20th 2008


A space-time finite element code based on the time-discontinuous Galerkin method with pressure-primitive variables adding least squares and discontinuity capturing operators has been developed to simulate the fluid-dynamics of multicomponent, multiphase, homegeneous, incompressible-to-compressible mixtures (Shakib et al., CMAME, 1991; Hauke & Hughes, CMAME, 1998). A predictor-multicorrector time marching algorithm is employed, with GMRES solver for the linearized system of discretized equations. The conservation equations are mass of each mixture component, mixture momentum and mixture energy. The code has been used to simulate the thermo-fluid dynamic evolution of magma in magma chambers, eruptive dikes and conduits. The implementation of a fluid-structure interaction code, based on the same finite element method is in progress. This will make use of the two-field formulation by Masud & Hughes (CMAME, 1997), Hughes & Hulbert (CMAME, 1998), and will incorporate mesh deformation as in Tezduyar et al. (CMAME, 2006). The final objective of the numerical simulation studies is the investigation of the physics of volcanoes and the forecasting of volcanic hazard.