I have currently been attempting to fill a silo with solid particles. For this problem I am only using DPM model. I am injecting the solid particles through the inlet (top of the silo) and allowing them to fall under gravity. I have set all boundaries (walls and outlet) to 'reflect' so the particles will stay inside the silo, however I am finding that the particles never come to rest (always still moving) and am requiring 1000's of iterations/1000's of seconds and still the same result. As shown in the attached picture, that is the result I am looking for however I am just wanting to fill the silo and not release the particles. I am quite stumped on how to achieve this.
What could be the issue in my case?
Could anyone suggest alternative methods to achieve this?
Any help is greatly appreciated.
Also note: I am not planning on using the large amount of particles as shown in the picture, it is purely just a representation of what I am attempting to do.