Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006,...

17
Cavitation Bubbles and Shockwaves in Microgravity 7th International Astronautical Congress 006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A. de Bosset, C. Nicollier, and M. Farhat

TAGS:

Transcript of Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006,...

Page 1: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Cavitation Bubbles and Shockwaves

in Microgravity

57th International Astronautical Congress2006, Valencia, Spain

D. Obreschkow, P. Kobel, N. Dorsaz, A. de Bosset,

C. Nicollier, and M. Farhat

Page 2: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Cavitation & Erosion

Page 3: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Experimental Idea

Confined shockwave

Predicted liquid jets

Interaction with spherical free surface

Water Drop

Cavitation Bubble

Page 4: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Drop Formation & Fixation

Page 5: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Drop-Electrodes Interaction

Neutral Repulsion Attraction

Page 6: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Drop Oscillations

1/e damp outtime = 0.7s

www.flashandsplash.ch

Page 7: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

around the drop …

Page 8: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

First Light

Page 9: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Peculiar Jet Geometry

Phys. Rev. Lett. 97, 094502 (2006)

Page 10: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Surprising Lifecycle

Phys. Rev. Lett. 97, 094502 (2006)

Equation of Motion:

Page 11: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.
Page 12: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Flashing Mist

0.0ms 0.08ms 0.16ms

Page 13: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Single Microbubble

Page 14: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Sockwave Simulation

Page 15: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Simulation versus Observation

Page 16: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Overview

Counterjet Geometry Change

Lifetime Shortening

Shockwave focusing amplifies 2nd cavitation

"Injector tube" technique is useful

Double-jet observations

…

Page 17: Cavitation Bubbles and Shockwaves in Microgravity 57th International Astronautical Congress 2006, Valencia, Spain D. Obreschkow, P. Kobel, N. Dorsaz, A.

Cheers !


Supersonic flow and shockwaves Claude-Louis Navier George Gabriel Stokes.

Supersonic flow and shockwaves Claude-Louis Navier George Gabriel Stokes.

Curriculum shockwaves? Geography, science, and the ... · science, and the Canterbury earthquakes Mike Taylor and Azra Moeed Abstract ... are viewed as key mitigation responses to

Curriculum shockwaves? Geography, science, and the ... · science, and the Canterbury earthquakes Mike Taylor and Azra Moeed Abstract ... are viewed as key mitigation responses to

The Cosmic Evolution of Atomic and Molecular Hydrogen in ...€¦ · The Cosmic Evolution of Atomic and Molecular Hydrogen in Galaxies Danail Obreschkow Lincoln College, Oxford A

The Cosmic Evolution of Atomic and Molecular Hydrogen in ...€¦ · The Cosmic Evolution of Atomic and Molecular Hydrogen in Galaxies Danail Obreschkow Lincoln College, Oxford A

L’AUTODÉTERMINATION DANS LA MISE EN PLACE …...Mesdames Sonja Michellod, Danaé Monnet, Léonie Dorsaz et Mélanie Müller pour la relecture de notre travail et leur disponibilité.

L’AUTODÉTERMINATION DANS LA MISE EN PLACE …...Mesdames Sonja Michellod, Danaé Monnet, Léonie Dorsaz et Mélanie Müller pour la relecture de notre travail et leur disponibilité.

Microfluidics to produce and manipulate microcrystals...Microfluidics to produce and manipulate microcrystals Nicolas Dorsaz Laura Filion Mark Miller Dwipayan Chakrabarti David Wales

Microfluidics to produce and manipulate microcrystals...Microfluidics to produce and manipulate microcrystals Nicolas Dorsaz Laura Filion Mark Miller Dwipayan Chakrabarti David Wales

Visual Simulation of Shockwavesgeom/SHOCK/vss_gmod.pdf · Visual Simulation of Shockwaves Jason Sewall∗,a, Nico Galoppob, Georgi Tsankova, Ming Lina aUniversity of North Carolina

Visual Simulation of Shockwavesgeom/SHOCK/vss_gmod.pdf · Visual Simulation of Shockwaves Jason Sewall∗,a, Nico Galoppob, Georgi Tsankova, Ming Lina aUniversity of North Carolina

Gillioz Dorsaz & Associés Avocats – Attorneys at Law – Contentieux · 2020. 10. 7. · matièrecommerciale,contractuelle,bancaire,financièreoufiscale,domaines danslesquels nousintervenonsaussiendehorsdetoutcontentieux.Référenceestfaiteauxpages

Gillioz Dorsaz & Associés Avocats – Attorneys at Law – Contentieux · 2020. 10. 7. · matièrecommerciale,contractuelle,bancaire,financièreoufiscale,domaines danslesquels nousintervenonsaussiendehorsdetoutcontentieux.Référenceestfaiteauxpages

Title: Percutaneous Nephrolithotomy versus Extracorporeal Shockwaves Lithotripsy for Treatment of a 20-30 mm Single Renal Pelvis Stone Authors: Mohammed.

Title: Percutaneous Nephrolithotomy versus Extracorporeal Shockwaves Lithotripsy for Treatment of a 20-30 mm Single Renal Pelvis Stone Authors: Mohammed.

SHOCKWAVES (Newsletter) Workshop for final year students › Electrical › Newsletter › volume7.pdf · SHOCKWAVES Page 3 Department of Electrical Engineering RESULT 2016-17, SEM-I

SHOCKWAVES (Newsletter) Workshop for final year students › Electrical › Newsletter › volume7.pdf · SHOCKWAVES Page 3 Department of Electrical Engineering RESULT 2016-17, SEM-I

RADIAL SHOCKWAVES - ITA Eme Physio€¦ · Testimonial ufficiale - Official testimonial Elisa Di Francisca Una delle fiorettiste più forti di sempre, medaglia d’oro alle Olimpiadi

RADIAL SHOCKWAVES - ITA Eme Physio€¦ · Testimonial ufficiale - Official testimonial Elisa Di Francisca Una delle fiorettiste più forti di sempre, medaglia d’oro alle Olimpiadi

Gas Dynamics in Galaxies - Cavendish Astrophysics · Gas Dynamics in Galaxies Danail Obreschkow Cambridge, 6 Sep 2013 International Centre for Radio Astronomy Research University

Gas Dynamics in Galaxies - Cavendish Astrophysics · Gas Dynamics in Galaxies Danail Obreschkow Cambridge, 6 Sep 2013 International Centre for Radio Astronomy Research University

Combining doxorubicin-nanobubbles and shockwaves for ...

Combining doxorubicin-nanobubbles and shockwaves for ...

Landform Geography Earthquakes and Volcanoes. Earthquakes Sudden release of tectonic stress creates movement in Earth’s crust & shockwaves through lithosphere.

Landform Geography Earthquakes and Volcanoes. Earthquakes Sudden release of tectonic stress creates movement in Earth’s crust & shockwaves through lithosphere.

Solitons, Shockwaves and Spikes: Computational Simulation ... · Applied Mathematical Sciences, Vol. 3, 2009, no. 59, 2933 - 2966 Solitons, Shockwaves and Spikes: Computational Simulation

Solitons, Shockwaves and Spikes: Computational Simulation ... · Applied Mathematical Sciences, Vol. 3, 2009, no. 59, 2933 - 2966 Solitons, Shockwaves and Spikes: Computational Simulation

The inner world of a collapsing bubble · The inner world of a collapsing bubble Outi Supponen, Philippe Kobel, Danail Obreschkow, and Mohamed Farhat Citation: Physics of Fluids 27,

The inner world of a collapsing bubble · The inner world of a collapsing bubble Outi Supponen, Philippe Kobel, Danail Obreschkow, and Mohamed Farhat Citation: Physics of Fluids 27,

Shockwaves and High Intensity Focused Ultrasound for the

Shockwaves and High Intensity Focused Ultrasound for the

The SKADS sky and databases F. Levrier, R. Wilman, D. Obreschkow, H.-R. Klöckner, S. Rawlings (Oxford Astrophysics) D. Olteanu, S. Young (Oxford e-Research.

The SKADS sky and databases F. Levrier, R. Wilman, D. Obreschkow, H.-R. Klöckner, S. Rawlings (Oxford Astrophysics) D. Olteanu, S. Young (Oxford e-Research.

Seismic waves. When an earthquake occurs shockwaves of energy, called seismic waves, are released from the earthquake focus. They shake the Earth and.

Seismic waves. When an earthquake occurs shockwaves of energy, called seismic waves, are released from the earthquake focus. They shake the Earth and.

Understanding the H HI Ratio in Galaxies - arXiv · Understanding the H2/HI Ratio in Galaxies D. Obreschkow and S. Rawlings Astrophysics, Department of Physics, University of Oxford,

Understanding the H HI Ratio in Galaxies - arXiv · Understanding the H2/HI Ratio in Galaxies D. Obreschkow and S. Rawlings Astrophysics, Department of Physics, University of Oxford,

Peter A. Gloor*, Pierre Dorsaz, Hauke Fuehres and Manfred ...In our analysis, we focus on the participants of two Swiss ... online networks to real-world networks, confirming the value

Peter A. Gloor*, Pierre Dorsaz, Hauke Fuehres and Manfred ...In our analysis, we focus on the participants of two Swiss ... online networks to real-world networks, confirming the value