Swelling Model in CFX
 

Hi there,
I am trying to simulate a coal combustion with particle tracking in CFX. I´m not sure about which value to use as the swelling coeficient. I now that 0.0 means no change in particle diameter, > 0.0 means a increase in diameter. So a value less than zero mean a decrease in diamenter?:confused: CFX manual don´t say anything about particle diamenter decrease.

PS: Sorry about my english.