[dussa]

Hi everyone,

I am looking a the effect of flow through a packed bed of spherical pebbles within a cylindrical container. I have successfully solved the pressure drop across the packed bed for the isothermal case and am now interested in energy models for the system.

In particular I am interested in the generation of heat within the spherical particles themselves. I have found the models under the Lagrangian Phase node that include Energy, and User-defined Energy Source, however it appears that the User-defined energy can only be a single value for all the particles in the system. I would like to have the energy density of a particle vary depending on the location of the pebble within the container (both radially and axially) ie hotter particles in the middle of the particle bed.

Has anyone had any experience with this or know if this is even possible?

Regards,

Rob

[ping]

i assume you would be using dem particles for this and then adding user energy option to that phase is possible and it can be set by field function or table as well as a constant.
so you can define an elaborate equation in a field function to do what you need and i tested this in 12.04

[Hechengshuo]

change the constant into field function at the user-defined energy source options, choose the appropriate function.
I think you are studying the high temperature gas cooled reactor. Is it right?

[dussa]

Originally Posted by Hechengshuo

change the constant into field function at the user-defined energy source options, choose the appropriate function.
I think you are studying the high temperature gas cooled reactor. Is it right?

No that is not what I am studying