3 P The PIV Particle Perspective a Poster

3 P : The PIV Particle Perspective a Poster by Prof. Perot Interactive Turbulence and Particle Dynamics using a Pretty Physics Program Things To See and Do … Lagrange vs Euler Which of these ancient dudes rocked more? Chaos in Motion Serious stretching and folding “Be the Ball” • If it slows down too much – “Stir it”. Use the “clump” command in Lagrangian or Eularian Mode Try both modes out – and then vote your preference. Watch the Energy Cascade – “Live” • The domain is a fully periodic box, so the fluid, the particles and even you, can pass through the walls. Try It Particle Dynamics • Add small scale energy – “shake” – and watch it dissipate fast. • If you loose your particle clump – find it in Eularian mode (and by dragging with the left mouse down) Buckets NOT provided for “vomit mode” Watch particles gather in straining regions and exit from vortical ones This program uses Fourier Spectral Direct Numerical Simulation of the turbulence. But who cares about that Just play. • Add large scale energy – “stir” – and watch the “energy cascade” in live action. 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 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 3 D screen (just like at the IMAX theater) using household items and tricky tricks. Hope you can’t wait. Donations are being gratefully accepted. Partially Supported by Theoretical & Computational Fluid Dynamics Laboratory