Drag model for non-spherical particles. More...
Public Member Functions | |
TypeName ("nonSphereDrag") | |
Runtime type information. More... | |
NonSphereDragForce (CloudType &owner, const fvMesh &mesh, const dictionary &dict) | |
Construct from mesh. More... | |
NonSphereDragForce (const NonSphereDragForce< CloudType > &df) | |
Construct copy. More... | |
virtual autoPtr< ParticleForce< CloudType > > | clone () const |
Construct and return a clone. More... | |
virtual | ~NonSphereDragForce () |
Destructor. More... | |
virtual forceSuSp | calcCoupled (const typename CloudType::parcelType &p, const typename CloudType::parcelType::trackingData &td, const scalar dt, const scalar mass, const scalar Re, const scalar muc) const |
Calculate the non-coupled force. More... | |
Public Member Functions inherited from ParticleForce< CloudType > | |
TypeName ("particleForce") | |
Runtime type information. More... | |
declareRunTimeSelectionTable (autoPtr, ParticleForce, dictionary,(CloudType &owner, const fvMesh &mesh, const dictionary &dict),(owner, mesh, dict)) | |
Declare runtime constructor selection table. More... | |
ParticleForce (CloudType &owner, const fvMesh &mesh, const dictionary &dict, const word &forceType, const bool readCoeffs) | |
Construct from mesh. More... | |
ParticleForce (const ParticleForce &pf) | |
Construct copy. More... | |
virtual | ~ParticleForce () |
Destructor. More... | |
const CloudType & | owner () const |
Return const access to the cloud owner. More... | |
CloudType & | owner () |
Return references to the cloud owner. More... | |
const fvMesh & | mesh () const |
Return the mesh database. More... | |
const dictionary & | coeffs () const |
Return the force coefficients dictionary. More... | |
virtual void | cacheFields (const bool store) |
Cache fields. More... | |
virtual forceSuSp | calcNonCoupled (const typename CloudType::parcelType &p, const typename CloudType::parcelType::trackingData &td, const scalar dt, const scalar mass, const scalar Re, const scalar muc) const |
Calculate the non-coupled force. More... | |
virtual scalar | massAdd (const typename CloudType::parcelType &p, const typename CloudType::parcelType::trackingData &td, const scalar mass) const |
Return the added mass. More... | |
Protected Attributes | |
const scalar | phi_ |
The ratio of the surface area of a sphere with the same volume as. More... | |
const scalar | a_ |
Coefficient. More... | |
const scalar | b_ |
Coefficient. More... | |
const scalar | c_ |
Coefficient. More... | |
const scalar | d_ |
Coefficient. More... | |
Additional Inherited Members | |
Public Types inherited from ParticleForce< CloudType > | |
typedef VectorSpace< Vector< vector >, vector, 2 > | returnType |
Convenience typedef for return type. More... | |
Static Public Member Functions inherited from ParticleForce< CloudType > | |
static autoPtr< ParticleForce< CloudType > > | New (CloudType &owner, const fvMesh &mesh, const dictionary &dict, const word &forceType) |
Selector. More... | |
Drag model for non-spherical particles.
The drag coefficient is given by:
Where , , , and are coefficients, calculated as functions of . is the ratio of the surface area of a sphere with the same volume as the particle to the actual surface area of the particle, and must be between 0 and 1.
Reference:
Haider, A., & Levenspiel, O. (1989). Drag coefficient and terminal velocity of spherical and nonspherical particles. Powder technology, 58(1), 63-70.
Definition at line 64 of file NonSphereDragForce.H.
NonSphereDragForce | ( | CloudType & | owner, |
const fvMesh & | mesh, | ||
const dictionary & | dict | ||
) |
Construct from mesh.
Definition at line 32 of file NonSphereDragForce.C.
References Foam::exit(), Foam::FatalError, and FatalErrorInFunction.
NonSphereDragForce | ( | const NonSphereDragForce< CloudType > & | df | ) |
Construct copy.
Definition at line 57 of file NonSphereDragForce.C.
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virtual |
Destructor.
Definition at line 73 of file NonSphereDragForce.C.
References NonSphereDragForce< CloudType >::calcCoupled().
Referenced by NonSphereDragForce< CloudType >::clone().
TypeName | ( | "nonSphereDrag" | ) |
Runtime type information.
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inlinevirtual |
Construct and return a clone.
Reimplemented from ParticleForce< CloudType >.
Definition at line 110 of file NonSphereDragForce.H.
References NonSphereDragForce< CloudType >::calcCoupled(), p, Foam::Re(), and NonSphereDragForce< CloudType >::~NonSphereDragForce().
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virtual |
Calculate the non-coupled force.
Reimplemented from ParticleForce< CloudType >.
Definition at line 81 of file NonSphereDragForce.C.
References Foam::pow(), Foam::sqr(), and Foam::Zero.
Referenced by NonSphereDragForce< CloudType >::clone(), and NonSphereDragForce< CloudType >::~NonSphereDragForce().
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protected |
The ratio of the surface area of a sphere with the same volume as.
the particle to the actual surface area of the particle. Between 0 and 1.
Definition at line 75 of file NonSphereDragForce.H.
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protected |
Coefficient.
Definition at line 78 of file NonSphereDragForce.H.
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protected |
Coefficient.
Definition at line 81 of file NonSphereDragForce.H.
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protected |
Coefficient.
Definition at line 84 of file NonSphereDragForce.H.
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protected |
Coefficient.
Definition at line 87 of file NonSphereDragForce.H.