How to define particlewall restitution coefficient in Eulerian multiphase model ?
Hi,
I am using Eulerian multiphase along with granular model to simulate a circulating fluidized bed. Where do I specify the value for particlewall restituition coefficient? Thanks 
hi,
you cannot define it. Instead use specularity coeffcient. 
Is there any relation between specularity coefficient and particlewall restitution coefficient?

I am not sure about this............May be some UDF can be written....

hi,
Many results on simulation have been published using both 'particleparticle restitution coeffcient' and 'particlewall restitution coeffcient' along with 'specularity coefficient'. I am just wondering how is it possible. Are you sure that one cannot specify 'particlewall coefficient' ? Thanks 
define > phases, select secondary phase, set and set Granular Temperature Model to Partial Differential Equation
now you can set coefficient of restitution under Boundary Conditions, wall (for second phase) under multiphase. 
Thanks a lot...!

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