Hello
I am trying to perform tribo-charging of 1 spherical particle with a diameter of 1 mm and alpha = -0.5. The particle has an initial charge of 0, and the work functions of the particle and material are 4.9 and 5.2, respectively.
When I estimate the charge that can be developed on the particle using an equation from the literature (see image) I get the value of -10.446e7 where as EDEM gives me a value of -4.28e-7
Please tell me why is this happening
I am using these equations to estimate the charge the N value is 1 as i am only using one sphere
