Edit the void ratio of the particle

Submitted by Soo-Min Ham on Thu, 01/23/2020 - 08:20

I am now using the CFDEM for modelling the soil erosion.

As far as I know, the void fraction of the CFD cell, which is the particle volume in each CFD cell, is calculated with the particle information like particle size and location. I'd like to edit the void fraction manually with consistent ratio.
For example,
If the values of actual void fraction are 0.1, 0.2, and 0.3, then I like them to be 0.2, 0.4, 0.6.

Is is possible to adjust the void fraction value manually with consistent ratio?

Thanks in advance,


aatxutegi | Fri, 02/07/2020 - 11:05

Hi Soo-Min

I would overload the setVoidFraction() member of your custom voidFractionModel, be careful to bound the final void fraction between 1.0 and the maximum packing limit . However, I really do not understand why you'd like to add an arbitrary quantity to your calculated void fraction field.