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The interaction of shocks with two-phase flows occurs in many technical applications such as spray generation and liquid-fuel combustion. The complexity implied by the occurrence of shock-interface interactions prevents a reliable prediction by experiments. A reliable prediction by simulation is currently obstructed by uncertainties in interaction modelling and uncertainties of initial and boundary data. The motivation of the current project can be summarized as: (i) to assess known uncertainty quantification methods for a physically complex interaction problem in fluid mechanics, (ii) improve such methods or develop new methods which are better suited and allow for more efficient application to complex interactions in fluid mechanics, (iii) for the first time achieve a quantitative estimate for the different modelling and physical uncertainties determining shock-interface interactions in two-phase flows.

The objective of the described project is the analysis and quantification of the uncertainty implied by the assumed properties for gas and liquid (equation of state, surface tension, viscosity), and due to corrugations of impinging shock and interface with shock-liquid-droplet interaction. A suitable uncertainty measure needs to be defined based on the time and space evolution of the fluid state variables or derived quantities such as vorticity. The uncertainty measure should reflect the main engineering objective of shock-bubble interaction, i.e. increase of chaotic mixing. The flow state is computed by a simulation code where the conservative interaction method recently proposed by us is implemented.

 

01-01-1970
14.02.17

Registration now open: IGSSE Forum 2017

29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen

18.04.17

Project team ROLITOS in a German documentary

10 May 2017, 11.30 pm Suedwestrundfunk (TV)

30 May 2017, 10.30 pm Bayerischer Rundfunk (TV)

11.04.17

Apply now: McKinsey 'Forschergeist' symposium

9-11 June 2017, Berlin

For doctoral researchers and postdocs!

10.04.17

Register now: ICMSB 2017

26-28 July 2017, TUM Study and Science Center, Raitenhaslach

30.03.17

Apply now: Bavarian Elite Support Act - Scholarship 2017

Universität Bayern e.V. awards 10 research scholarships to highly qualified junior scientists...

30.03.17

1st ExaHyPE Colloquium

3 April 2017, 1pm-5pm, Leibniz Supercomputing Centre, Garching Campus

14.02.17

Registration now open: IGSSE Forum 2017

29-31 May 2017, TUM Science and Study Center Raitenhaslach, Burghausen

05.06.16

10th IGSSE Forum

Smart cooperation - science and technology in, with and for society

15.12.15

The Science of Cooking

Doctoral Candidates explore the Secrets of a great Dinner

26.11.15

ATUMS@IGSSE

Having heard of a great Canadian Kick-Off Meeting, everyone at IGSSE was thrilled to welcome the...

20.11.15

Breakfast at IGSSE´s

Meet the IGSSE team every other month! All the things IGSSE members wanted to asked but never dared...

13.10.15

Save the Date: Canadian ATUMS Speaker on "Global Science- Global Career"

26. November 2015, 6-8 pm, IAS Faculty Club, Garching Campus

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Monday, 03. April 2017
1st ExaHyPE Colloquium
3 April 2017, 1pm-5pm, Leibniz Supercomputing Centre, Garching Campus