what should be the each sphere size to create the single particle using multi sphere method
hello Expert
I am trying to simulate the granular flow consisting gravel and sand. i created the gravel (size of 7mm) using mutisphere particle method in EDEM and 1 mm sand particle using single sphere. I have little doubts how we can fix the radious of each sphere while creating particle to have resultant mean dimension of particle created should be equal to our particle. For e.g. My gravel has 7 mm effective dia and i am using three sphere in prismatic form to create the prism type of particle. How i fix the radius of each sphere partile creation.
Answers
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Hi Mudassir,
You can change the positions and radii of the template particle in the Particle section and set the particle size distribution parameters in the Size Distribution sub-section. The particle size distribution is defined in temrs of scaling factors of the template particle so a mean of 1 corresponds to a mean particle with the dimensions of the template particle.
Best regards,
Stefan
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Hello,
Whatever dimensions you set when defining your particle size and shape (with the radius and position of each sphere), they are maintained when you determine the size distribution. If the option chosen is fixed, you will have the same particle size as the one defined in the particle section (your 7mm multisphere and 1mm single sphere). If you choose any other type for example a normal size distribution if you set your mean to be 1, the mean size of your particle will be the one defined in your particle section (7mm multisphere and 1mm single sphere) and the maximum and minimum size will vary based on the range defined with the standard deviation or caps. I hope that this helps.
Kind regards
Ignacio
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Hi Mudassir khan,
To add to this topic if you want to find out more about Multi-Sphere particles how they are created, and which other particles shapes are available, check the EDEM eLearning lessons link below:
Regards,
Cesar
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Altair Employee