12-23-2006, 08:10 AM
For majority of simulations, you'll need maximum of 120-160 iterations for maximum realisim that solver can provide. With more itereations, you will notice no difference at all - simulations will be exactly the same.
You might wonder why is that ?
Solver is working iteratively to reach an exact solution of fluid flow equations. For most of simulations, exact solution will be reached in 120 iterations, and if you have some extreme velocities in the grid - solver would need more than 200.
Quality 5 will produce very accurate solutions, and if you need to make a preview animation, you can use Quality 3 or 4 as you already did.
Excpet by tweaking solver quality, here are some ways to speed up simulation.
1. Increase Grid Spacing
2. Do not use Cubic Interpolation
3. Set Advection Stride to 0.5 (there is no need to go below 0.1)
4. For rough sim previews, you can set Adaptive Sensitivity to 0.1. Be careful with this parameter as adaptive grid might not stretch fast enough.
Regards,
Kresimir
You might wonder why is that ?
Solver is working iteratively to reach an exact solution of fluid flow equations. For most of simulations, exact solution will be reached in 120 iterations, and if you have some extreme velocities in the grid - solver would need more than 200.
Quality 5 will produce very accurate solutions, and if you need to make a preview animation, you can use Quality 3 or 4 as you already did.
Excpet by tweaking solver quality, here are some ways to speed up simulation.
1. Increase Grid Spacing
2. Do not use Cubic Interpolation
3. Set Advection Stride to 0.5 (there is no need to go below 0.1)
4. For rough sim previews, you can set Adaptive Sensitivity to 0.1. Be careful with this parameter as adaptive grid might not stretch fast enough.
Regards,
Kresimir