Re: [deal.II] Tips and tricks for functional tests on chaotic systems

2020-12-29 Thread blais...@gmail.com
There is a Facebook deal.II account? Now I know what to follow :)! Cheers! Bruno On Tuesday, December 29, 2020 at 12:20:15 p.m. UTC-5 Wolfgang Bangerth wrote: > On 12/28/20 10:54 PM, blais...@gmail.com wrote: > > > > If you want to see an animation of DEM done using the deal.II particle > >

Re: [deal.II] Tips and tricks for functional tests on chaotic systems

2020-12-29 Thread Wolfgang Bangerth
On 12/28/20 10:54 PM, blais...@gmail.com wrote: If you want to see an animation of DEM done using the deal.II particle library, you can find one on the following youtube link: https://www.youtube.com/watch?v=jPrxQ3KqNcI=youtu.be Nice -- that just made it to the deal.II Facebook account :-)

Re: [deal.II] Tips and tricks for functional tests on chaotic systems

2020-12-28 Thread blais...@gmail.com
Hi Wolfgang, Thank you for the suggestion. I did not think about it, but testing statistical properties (center of mass, average velocity, total kinetic energy) seems like a very sound idea! If you want to see an animation of DEM done using the deal.II particle library, you can find one on the

Re: [deal.II] Tips and tricks for functional tests on chaotic systems

2020-12-28 Thread Wolfgang Bangerth
Hi Bruno, We are currently working on our DEM simulation engine using deal.II particles features. DEM lead to very chaotic systems (with positive Lyapunov exponents, like in MD), which means that slight discrepancies in floating point numbers can lead to exponentially different results. You

[deal.II] Tips and tricks for functional tests on chaotic systems

2020-12-28 Thread blais...@gmail.com
Dear all, I hope you are well. It is me again pestering you all with questions or looking for advice :). We are currently working on our DEM simulation engine using deal.II particles features. DEM lead to very chaotic systems (with positive Lyapunov exponents, like in MD), which means that