Description🔗
The JohnsonJacksonParticleTheta
is a boundary condition that provides
Robin condition for the particulate granular temperature.
References
Reuge, N., Cadoret, L., Coufort-Saudejaud, C.,
Pannala, S., Syamlal, M., & Caussat, B. (2008).
Multifluid Eulerian modeling of dense gas–solids fluidized bed
hydrodynamics: influence of the dissipation parameters.
Chemical Engineering Science, 63(22), 5540-5551.
Johnson, P. C., & Jackson, R. (1987).
Frictional–collisional constitutive relations for granular materials,
with application to plane shearing.
Usage🔗
The condition requires entries in both the boundary and field files.
Boundary file🔗
<patchName>
{
type patch;
...
}
Field file🔗
<patchName>
{
// Mandatory entries
type JohnsonJacksonParticleTheta;
specularityCoefficient <dimensionedScalar>;
restitutionCoefficient <dimensionedScalar>;
// Inherited entries
...
}
where:
Property | Description | Type | Required | Default |
---|---|---|---|---|
type |
Type name: JohnsonJacksonParticleTheta
|
word | yes | - |
specularityCoefficient |
Specularity coefficient [-] | dimensionedScalar | yes | - |
restitutionCoefficient |
Restitution coefficient [-] | dimensionedScalar | yes | - |
The inherited entries are elaborated in:
-
mixedFvPatchFields.H
- The specularity coefficient has to be within (0, 1).
- The restitution coefficient has to be within (0, 1).
Further information🔗
Tutorial:
Source code:
API:
History:
- Introduced in version v2012