Prof. Peter Mustermann | Institut xxxxx | www.hzdr.de Seite 1 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Numerical simulation of multi-layer.

Präsentation zum Thema: "Prof. Peter Mustermann | Institut xxxxx | www.hzdr.de Seite 1 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Numerical simulation of multi-layer."—  Präsentation transkript:

1 Prof. Peter Mustermann | Institut xxxxx | www.hzdr.de Seite 1 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Numerical simulation of multi-layer deposition in a turbulent flow Sevan DRAPEAU-MARTIN

2 Mitglied der Helmholtz-Gemeinschaft Seite 2 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Numerical simulation of multi-layer deposition in a turbulent flow About me : Sevan DRAPEAU-MARTIN  Senior student at the Ecole Centrale Paris : Engineering school training all-round students.  Special affinity with Applied Mathematics and Computer Science  Speak German (not well), English and French 6-month internship from 06.02.12 until 06.08.12

3 Mitglied der Helmholtz-Gemeinschaft Seite 3 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Numerical simulation of multi-layer deposition in a turbulent flow  estimated total dust amount for the HTR in Juelich (1967-1988): 100 to 200 kg [Moorman, 2008]  corresponding dust production rate: 5 to 10 kg/year crack on pebble surface (erosion / abrasion / friction / oxydation) Schlögl (2009) AVR (FZ Jülich) Moormann (2008) Dust deposition

4 Mitglied der Helmholtz-Gemeinschaft Seite 4 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Development of a dynamic mesh to simulate multi-layer deposition Recreating a periodic steps geometry 3D rendering of the geometry (CAD)Photograph of the multilayer deposition experiment

5 Mitglied der Helmholtz-Gemeinschaft Seite 5 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Development of a dynamic mesh to simulate multi-layer deposition Meshing around a deposition surface Meshing around a dummy deposition following the equation : y=cos(omega*x)*exp(-x/x 0 )

6 Mitglied der Helmholtz-Gemeinschaft Seite 6 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Development of a dynamic mesh to simulate multi-layer deposition Meshing around a deposition surface Meshing around deposition following experimental data (after 0, 1, 2, 3, and 4 hours)

7 Mitglied der Helmholtz-Gemeinschaft Seite 7 Sevan DRAPEAU-MARTIN | Institut für Fluiddynamik | www.hzdr.de Development of a dynamic mesh to simulate multi-layer deposition Flow simulation Flow simulation in initial geometry Flow simulation with deposition following the experimental data after 2 hours Flow simulation with deposition following the experimental data after 4 hours