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Anders Johansen. Profile picture.

Anders Johansen

Professor

Anders Johansen. Profile picture.

Studies of gas-particle interaction : Implications for the streaming instability in protoplanetary disks

Author

  • Holly L. Capelo
  • Haitao Xu
  • Michiel Lambrechts
  • Anders Johansen
  • Eberhard Bodenschatz

Summary, in English

We present the early results from a novel experiment to study a particle-laden flow, under a parameter regime relevant to the conditions in planet-forming systems. We investigate the gas-particle interactions to identify the presence of and details regarding the streaming instability, which is theoretically predicted to aid the coalescence of small dust grains to form planetesimals - the macroscopic objects that will eventually interact gravitationally and become planets. We vary properties of the system such as dust-to-gas ratio, relative particle-gas velocity and gas pressure, for comparison to numerical simulations of protoplanetary disks. Experimentally calibrated numerical calculations of the particle motion within the instability regions will be used to model the evolution of protoplanetary disks at the scale of small dust grains, representing an unprecedented precision in our understanding of these difficult to study systems.

Department/s

  • Lund Observatory
  • eSSENCE: The e-Science Collaboration

Publishing year

2020

Language

English

Document type

Conference paper

Topic

  • Fluid Mechanics and Acoustics
  • Astronomy, Astrophysics and Cosmology

Conference name

14th European Turbulence Conference, ETC 2013

Conference date

2013-09-01 - 2013-09-04

Conference place

Lyon, France

Status

Published