GfsForceDrag

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(noted that GfsForceDrag is only for GfsParticulate discrete masses and not GfsParticle point particles)
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-A [[GfsForceDrag]] is one of the type of forces that can be exerted on Lagrangian particles ([[GfsParticle]]) part of a [[GfsParticleList]]. As its name suggest it sets the drag force acting on a Lagrangian particle.+A [[GfsForceDrag]] is one of the type of forces that can be exerted on [[GfsParticulate]] discrete mass-particles in the [[particulates]] module. As its name suggests the drag force opposes the slip velocity.
-The syntax for [[GfsForceDrag]] as part of the [[GfsParticleDrag]] syntax is:+The syntax in parameter files is:
- [[GfsParticleList]] ... [[GfsParticle]] ... { [[GfsForceDrag]] Cd }+ [ [[GfsForceCoeff]] ]
 + 
 +which only occurs as part of a [[GfsParticleList]] and within which it looks like:
 + 
 + [[GfsParticleList]] { ... } [[GfsParticulate]] { ... } {
 + ...
 + [[GfsForceDrag]] Cd
 + ...
 + }
where Cd is the drag coefficient of the particle (double). where Cd is the drag coefficient of the particle (double).

Revision as of 17:00, 19 July 2012

A GfsForceDrag is one of the type of forces that can be exerted on GfsParticulate discrete mass-particles in the particulates module. As its name suggests the drag force opposes the slip velocity.

The syntax in parameter files is:

 [ GfsForceCoeff ]

which only occurs as part of a GfsParticleList and within which it looks like:

 GfsParticleList { ... } GfsParticulate { ... } { 
   ...
   GfsForceDrag Cd 
   ...
 }

where Cd is the drag coefficient of the particle (double).

For developers the object hierarchy for GfsForceDrag is:

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