University of Cambridge > > Isaac Newton Institute Seminar Series > Dynamics of inertial particles in fully developed turbulence

Dynamics of inertial particles in fully developed turbulence

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Mustapha Amrani.

The Nature of High Reynolds Number Turbulence

We focus on acceleration of inertial particles, using experimatal measurements and numerical studies. In the experiment, particles are optically tracked in a turbulent flow of water using an Extended Laser Doppler Velocimetry technique. The probability density functions (PDF) of particle accelerations and their auto-correlation in time are computed. Numerical results are obtained from a direct numerical simulation in which a suspension of passive pointwise particles is tracked, with the same finite density and the same response time as in the experiment. We observe that many effects cannot be accounted for by point-particle models. We show that a much better description is achieved when one includes Faxen corrections in the particle’s equation of evolution.

This talk is part of the Isaac Newton Institute Seminar Series series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


© 2006-2024, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity