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P 3 : The P IV P article P erspective

Theoretical & Computational Fluid Dynamics Laboratory. Interactive Turbulence and Particle Dynamics. P 3 : The P IV P article P erspective. using a P retty P hysics P rogram. a P oster by P rof. P erot. Things To See and Do …. Chaos in Motion - Serious stretching and folding.

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P 3 : The P IV P article P erspective

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  1. Theoretical & Computational Fluid Dynamics Laboratory Interactive Turbulence and Particle Dynamics P3: The PIV Particle Perspective using a Pretty Physics Program a Poster by Prof. Perot Things To See and Do … Chaos in Motion - Serious stretching and folding • The domain is a fully periodic box, so the fluid, the particles and even you, can pass through the walls. • If it slows down too much – “Stir it”. • If you loose your particle clump – find it in Eularian mode (and by dragging with the left mouse down) Lagrange vs Euler Which of these ancient dudes rocked more? Try both modes out – and then vote your preference. “Be the Ball” Use the “clump” command in Lagrangian or Eularian Mode Try It Watch the Energy Cascade – “Live” Particle Dynamics Buckets NOT provided for “vomit mode” Watch particles gather in straining regions and exitfrom vortical ones • Add small scale energy – “shake” – and watch it dissipate fast. • Add large scale energy – “stir” – and watch the “energy cascade” in live action. This program uses Fourier Spectral Direct Numerical Simulation of the turbulence. But who cares about that - Just play. Did you miss last years poster? It was used to get the background on this poster and is also available. Next Year? The laptop will be turned into a 3D screen (just like at the IMAX theater) using household items and tricky tricks. Hope you can’t wait. Donations are being gratefully accepted. For a free copy of this program email: perot@ecs.umass.edu or go to: http://www.ecs.umass.edu/mie/faculty/perot/index.html Partially Supported by

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